Astrophile: A scorched world with snow black and smoky

Astrophile is our weekly column on curious cosmic objects, from the solar system to the far reaches of the multiverse

Object: Titanium oxide snow
Location: The hot-Jupiter planet HD 209458b

There is something magical about waking up to discover it has snowed during the night. But there's no powdery white blanket when it snows on exoplanet HD 209458b. Snow there is black, smoky and hot as hell – resembling a forest fire more than a winter wonderland. Put it this way: you won't be needing mittens.

HD 209458b belongs to a family called hot Jupiters, gas-giant planets that are constantly being roasted due to their closeness to their sun. By contrast, the gas giants in our immediate neighbourhood, including Jupiter, are frigid, lying at the solar system's far reaches.

HD 209458b is also noteworthy because it is tidally locked, so one side is permanently facing towards its star while the other is in perpetual night. On the face of it, these conditions wouldn't seem to invite snow: temperatures on the day side come close to 2000° C, while the night side is comparatively chilly at around 500° C.

Snow made of water is, of course, impossible on this scorched world, but the drastic temperature differential sets up atmospheric currents that swirl material from the day side to night and vice versa. That means that any substances with the right combination of properties might be gaseous on the day side and then condense into a solid on the night side, and fall as precipitation. Say hello to titanium oxide snow.

Stuck on the surface

Although oxides of titanium make up only a small component of a hot Jupiter's atmosphere, these compounds have the right properties to fall as snow. But there was a snag that could have put a stop to any blizzards. Older computer models of hot Jupiters suggested that titanium oxides condensing in the air on the night side would snow – and remain on the relatively cool surface forever. "Imagine on Earth if you had no mechanism to evaporate water, it would never rain," says Vivien Parmentier of the Côte d'Azur Observatory in Nice, France.

Now he and colleagues have created a more detailed 3D computer model that shows that the snow can become a gas again as it falls and the temperature and pressure increase. Strong updraughts can then blow the titanium oxides back to the upper atmosphere. "The gas can come back on the top layers and snow again and again," says Parmentier.

Snowfall on HD 209458b would be like none you've ever seen. Though titanium dioxide is white and shiny, for example, the snowflakes would also contain silica oxides from the atmosphere, making them black. Since the atmosphere is also dark, snowstorms on the planet would be a smoky affair, the opposite of the white-outs we get on Earth. "It would be like being in the middle of a forest fire," says Parmentier.

Although the team studied a particular hot Jupiter, their model should apply equally to other planets of this type, suggesting hot snow is a common occurrence. Parmentier says we may have already spotted snow clouds on another hot Jupiter, HD 189733b, as spectral analysis of the planet suggests the presence of microscopic particles in its atmosphere.

David Sing of the University of Exeter, UK, who helped identify such particles on HD 189733b, says the team's new model goes a long way to explaining how titanium oxides behave on hot Jupiters. "We're pretty used to water condensing on Earth; there it is titanium because the temperatures are so much hotter."

Hot, black snow – now that would be something to wake up to.

Reference: http://arxiv.org/abs/1301.4522

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Singapore Conversation turns to animal welfare

SINGAPORE: A more inclusive society for animals or tougher rules for buying a pet were some suggestions animal lovers brought up at a dialogue on Saturday.

It was also the first time the Singapore Conversation - an initiative to get Singaporeans to come to a consensus on the kind of future they want - focused on animal welfare.

Saturday's event was jointly organised by the Agency for Animal Welfare, the Our SG Conversation Committee and the Singapore Kindness Movement.

Two working dogs - Esme and Joel - were present at the dialogue.

They were there to receive an inaugural Great Pet award given out by the Agency for Animal Welfare to pets which have served their owners in extraordinary ways.

Esme works as a guide dog for her visually impaired master, while Joel is a health service dog who can alert family members during a medical emergency at home.

Awareness of working dogs in Singapore remains low.

Hence animal lovers at the dialogue urged more shops and restaurants to welcome these dogs and their owners.

Their vision is an inclusive Singapore, for animals, too.

But pet owners need to do their part.

A keyword heard throughout the dialogue was "responsibility" - the responsibility of pet owners.

Abandonment cases in Singapore are unfortunately common. Hence some said the process of buying and owning a pet should be made tougher.

One of them is business owner Jill Hum, who said: "It's just far too easy for someone to buy a pet. It's not just buying candy or a teddy bear from the toy store. It's a live animal, you need to know how to take care of the pet. You need to know it's a lifelong commitment."

Others like Melanie Lee want an outright ban on live animals in pet stores.

"If pet shops can be legislated such that they can't have any live pets for sale, that would really help, because we have so many dogs out there - strays dogs, dogs up for adoption that do not have a home right now."

MP for Nee Soon GRC Associate Professor Faishal Ibrahim said the issue will require consultation with relevant stakeholders.

But the dialogue must go on.

"What we need to do is continue to develop and deepen this journey, so that ten years down the road, we will have a more gracious society," said the MP.

One way that can happen, participants said, is to inject the importance of animal welfare into the education system.

- CNA/ir

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Super Bowl from the sidelines: Tech readiness is priority No. 1

View from main CBS control truck at the Superdome.

It's always a treat to watch the game coverage by the peerless NFL on CBS team, which is the very best in the business. And backing up our amazing group of analysts and experts in front of the camera is a trained crew of CBS Sports production and technical pros behind the scenes.

Their No. 1 priority is to deliver the perfect angle of every play, along with the sophisticated replays, zoom, and hyper-broadcast detail that TV viewers have grown to love. The production logistics and technical complexity associated with broadcasting the Super Bowl are astounding. This year, CBS Sports will have 62 cameras at the Superdome covering the game, along with dozens of replay devices. When you are able to capture virtually every detail of the action, the hard part becomes choosing the angles and replays wisely and making sure you don't interfere with the broadcast.

In the mix will be some 4K cameras, which allow for stunning zooming capabilities, as well as the CBS sky cam, which glides over the field on a cable, capturing all. Orchestrating and syncing all the associated gear -- including switchers, audio consoles, graphics gear packages, servers HD cam decks, and a whole lot of cable -- is a massive undertaking. Beyonce is not the only one rehearsing ahead of Sunday -- there have been production rehearsals every day this week to get ready.

I'm in awe of the process and all of my colleagues at CBS Sports who make the magic happen. The final countdown has begun, so follow me on Twitter at and stay tuned!

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Pictures We Love: Best of January

Photograph by Dieu Nalio Chery, AP

The magnitude 7 earthquake that struck near Port au Prince, Haiti, in January 2010 so devastated the country that recovery efforts are still ongoing.

Professional dancer Georges Exantus, one of the many casualties of that day, was trapped in his flattened apartment for three days, according to news reports. After friends dug him out, doctors amputated his right leg below the knee. With the help of a prosthetic leg, Exantus is able to dance again. (Read about his comeback.)

Why We Love It

"This is an intimate photo, taken in the subject's most personal space as he lies asleep and vulnerable, perhaps unaware of the photographer. The dancer's prosthetic leg lies in the foreground as an unavoidable reminder of the hardships he faced in the 2010 earthquake. This image makes me want to hear more of Georges' story."—Ben Fitch, associate photo editor

"This image uses aesthetics and the beauty of suggestion to tell a story. We are not given all the details in the image, but it is enough to make us question and wonder."—Janna Dotschkal, associate photo editor

Published February 1, 2013

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Gov's Handling of Sandusky Case Under Investigation

The newly-elected attorney general of Pennsylvania is going after the state's governor, Tom Corbett, who was attorney general when child sex allegations against Penn State coach Jerry Sandusky were first brought forward.

Kathleen Kane, a Democrat who was sworn in as attorney general on Jan. 15, said that she will name a special prosecutor in the coming days to investigate Corbett's handling of the Sandusky case. Corbett is a Republican.

The investigation will look specifically at why it took the attorney general's office three years to bring criminal charges against Sandusky while he continued to have access to children.

"Attorney General Kane will appoint a special prosecutor to lead the office's internal investigation into how the Sandusky child abuse investigation was handled by the Office of the Attorney General," Kane's office said in a statement released today.

Corbett's attorney general's office was first notified of the allegations against Sandusky in 2008 when a high school student told his mother and school that Sandusky had molested him. The local district attorney passed the allegation on to the attorney general, then Corbett. Corbett convened a grand jury.

Mario Tama; Patrick Smith/Getty Images

Jerry Sandusky Insists Innocence Before Sentencing Watch Video

Jerry Sandusky Sentencing: Why Did He Release Statement? Watch Video

Jerry Sandusky Claims Innocence in Audio Statement Watch Video

It wasn't until 2011 that sex abuse charges were filed against Sandusky while Corbett had since become governor. Sandusky was convicted on 45 counts of sex abuse in June 2012.

The charges sent shockwaves throughout Pennsylvania, as Penn State's president, two top officials, and legendary coach Joe Paterno all lost their jobs over the scandal.

"Why did it take 33 months to get Sandusky off the streets? Was the use of a grand jury the right decision? Why were there so few resources dedicated to the investigation? Were the best practices implemented?" the statement from Kane's office read.

"At the end of this investigation, we will know the answers to these questions and be able to tell the people of Pennsylvania the facts and give them answers that they deserve," the statement said.

Describing an interview Kane gave the New York Times, the Times said Kane suggested that Corbett did not want to upset voters or donors in the Penn State community before his gubernatorial run in 2009.

Corbett has denied those suggestions. His office did not immediately return calls for comment.

Kane's office preemptively fought back against the idea that the investigation is politically motivated. Kane, a Democrat, defeated the incumbent attorney general, Linda Kelly, a Republican in November 2011. Corbett is a Republican.

"The speculation that this is about politics is insane," a staff member in Kane's office told ABC News today. "You go anywhere in Pennsylvania and anywhere across the country and you'll find individuals asking, 'why did it take three years? Why was there a grand jury? Why make these kids talk to 30 different people about what happened?"

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Indonesia's January inflation rises to 4.57%

JAKARTA: Indonesian inflation hit a four-year high on a monthly basis in January as food prices soared following severe flooding across the country, an official said on Friday.

The monsoonal downpour pushed inflation to 1.03 per cent last month from 0.54 per cent in December, while it also accelerated to 4.57 per cent year on year, from 4.3 per cent, Central Statistics Bureau chief Suryamin said.

"Bad weather in January caused some food prices to increase, including chillies and chicken. Food was the biggest driver of inflation last month," Suryamin told reporters.

However, core inflation, which excludes volatile food prices, eased to 4.32 per cent from 4.4 per cent the previous month.

The country's central bank, Bank Indonesia, has left its benchmark interest rate unchanged at a record low of 5.75 per cent since February, having kept inflation within the target range of 4.5-5.5 per cent.

- AFP/fa

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Chrome, IE, Silk pry open mobile-browsing market

Chrome and Internet Explorer have carved their way into the top five mobile browsers, according to Net Applications' measurements of browser usage.

(Credit:
Net Applications)

New mobile browsers including Google's Chrome, Microsoft's IE, and Amazon's Silk are gaining
a foothold in a market that's growing faster than traditional browsing on personal computers.

The mobile browsing market has long been dominated by three products. Apple's
Safari has long
held the top spot in usage share measurements by Net Applications, with second place going to
Google's unbranded
Android browser after it surpassed Opera Mini last year.

Safari had 61.0 percent, the Android browser 21.5 percent, and Opera Mini 9.8 percent of usage
in January, measurements released today show.

But new contenders are starting to appear now.

The most assured of success is Chrome, which pushed aside BlackBerry OS's browser last November for fourth
place. Chrome works on Android 4.0, aka Ice Cream Sandwich, or 4.1 and 4.2, aka Jelly Bean,
and now ships with newer Android devices.

Chrome rose from 1.5 percent of use in December to 2.0 percent in January, Net Applications
said.

The next to bump BlackBerry down a peg is Microsoft's Internet Explorer, which rose from 1.2
percent to 1.3 percent to claim fifth place in January.

Internet Explorer's market share losses have stabilized, according to Net Applications' measurements.

(Credit:
Net Applications)

The BlackBerry browser -- which could get a boost if the brand-new BlackBerry 10 OS and its first two
phones, the Q10 and Z10 catch on -- slipped down to 1.2 percent
of browser usage in January.

That's still ahead of Amazon's Silk, at 0.8 percent, or Opera Mobile, at 0.6 percent. And it's far
ahead of Mozilla's
Firefox version for Android, which didn't even cross the 0.05 percent
threshold.

Mobile browsing is on the increase, rising to an all-time high of 11.8 percent of total browsing in
January, according to Net Applications.

Tablets and smartphones account for a steadily increasing fraction of browser usage.

(Credit:
Net Applications)

On PCs, the browser usage share remained relatively stable.

IE remained the leader with 55.1 percent of the market, and Firefox at 19.9 percent kept its edge
over Chrome at 17.5 percent. Safari and Opera stayed level at 5.2 percent and 1.8 percent,
respectively.

Net Applications bases its
usage data on activity logged on a collection of more than 40,000 Web sites with more than
160 million visits each month. It attempts to weight the data to account for differences in its
collection of sites and overall global Internet usage. It also logs only the first Web site visit by a
user on each day in an attempt to measure what people are using rather than how much they
use it.

A rival measurement service, StatCounter, bases its
measurements on clicks only and doesn't attempt any geographic weighting. It shows different
winners and losers, with Chrome in the lead at 36.5 percent, IE next with 30.7 percent, and Firefox in third place with 21.4 percent.

StatCounter, which uses different methodology for tallying browser usage, shows Chrome as the top worldwide browser for January 2013.

(Credit:
StatCounter)

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Sinkhole Swallows Buildings in China

Photograph from AFP/Getty Images

The sinkhole that formed in the southern Chinese city of Guangzhou (pictured) is, unfortunately, not a new occurrence for the country.

Many areas of the world are susceptible to these sudden formations, including the U.S. Florida is especially prone, but Guatemala, Mexico, and the area surrounding the Dead Sea in the Middle East are also known for their impressive sinkholes. (See pictures of a sinkhole in Beijing that swallowed a truck.)

Published January 31, 2013

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Columbia Shuttle Crew Remembered 10 Years Later

Iain Clark is a teenager now. He was eight years old when his mother, Dr Laurel Clark, and six other astronauts died when the space shuttle Columbia fell apart in the skies over Texas 10 years ago today.

Iain's father, Dr. Jonathon Clark, told ABC News recently that he and Iain will never really recover.

"There will always be a sense of loss and pain and hurt," said Clark. "I've lost a lot, but I've gained a lot, too. I have a perspective and reverence for life. I have my son, and seeing him through this has been very rewarding -- though it has been difficult, as well."

Feb. 1, the anniversary of the Columbia accident, is the day NASA chooses to remember all the astronauts who have died during missions.

Spaceflight is a risky business. Some of the accidents are well known. Others, not really. But they all illustrate just how dangerous it is to leave our planet and venture into orbit.

Three accidents, in particular, are seared in our memories because NASA's missions have been so dramatic, and so public.

First, there was the fire on Jan. 27, 1967, which killed Apollo 1's crew of Command Pilot "Gus" Grissom, Senior Pilot Ed White and Pilot Roger Chaffee. At the time, NASA was racing to beat the Soviet Union to the moon.

Second was the space shuttle Challenger's accident on Jan. 28, 1986, which was seen live by children across the country because its crew included the first teacher in space, Christa McAuliffe.

Finally, Columbia's accident, on a clear, sunny Saturday, Feb. 1, 2003, as it re-entered from space after a seemingly routine science mission, stunned the country. It also meant the end of NASA's space shuttle program.

This morning at 9:16 a.m. ET, the time Columbia would have landed at the Kennedy Space Center in 2003, there will be a minute of silence. A bell will toll seven times at the Johnson Space Center for the seven astronauts who died on Columbia's final mission, STS 107: Commander Rick Husband, Pilot Willie McCool, Mission Specialists Michael Anderson, David Brown, Laurel Clark, Kalpana Chawla and Ilan Ramon.

It took months for the commission investigating the accident to determine the cause: foam. A piece the size of a briefcase broke off one of the shuttle's external fuel tanks, punching a hole in the orbiter's left wing.

The crew of seven knew something was wrong very late during re-entry, but there wasn't anything they or mission control could do to save them or Columbia. It took managers at the Johnson Space Center months to accept that something so simple as a piece of foam could do so much damage.

Wayne Hale, who guided NASA's space shuttle program back from the accident, was the only NASA employee who publicly accepted responsibility for Columbia's accident.

Hale now works in the private sector, but recently wrote in a blog about the internal discussion at mission control while engineers discussed what they thought might be a problem -- but weren't sure.

"After one of the MMTs [mission management teams] when possible damage to the orbiter was discussed," Hale wrote, "[Flight Director Jon Harpold] gave me his opinion: 'You know, there is nothing we can do about damage to the TPS [thermal protection system]. If it has been damaged it's probably better not to know. I think the crew would rather not know. Don't you think it would be better for them to have a happy successful flight and die unexpectedly during entry than to stay on orbit, knowing that there was nothing to be done, until the air ran out?'

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Trend-setting chimp teaches friend to use a straw

Sandrine Ceurstemont, editor, New Scientist TV

If your friend has a more efficient way of getting food, it makes sense to copy them. Now an experiment is showing for the first time that chimps also come to the same conclusion.

Captured by Shinya Yamamoto from Kyoto University in Japan and colleagues, this video shows how a chimp improves its use of a straw after observing a more proficient companion. At first, it uses the tool almost like an eye-dropper, dipping it in a box to sop up juice. But after it watches its friend drink faster by sucking on the straw, it learns to adopt this new approach. According to the team, which studied nine chimps, once an ape switched to straw-sucking, it never went back to the less efficient dipping technique.

Although it's well known that chimps learn socially, it's the first time they've been shown to improve the way they use a tool, which is a comparatively sophisticated ability. It requires a chimp to differentiate between two techniques involving the same instrument to achieve an identical goal.

The experiment shows that these apes have the mental capacity to evolve their cultural learning. "The limitations might be due to ecological, social and motivational factors rather than cognitive abilities," write the researchers.

If you enjoyed this clip, see how chimps carry corpses to mourn their dead or watch a bonobo genius make stone tools.

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Myanmar's Suu Kyi picks up decade-old rights award

GWANGJU, South Korea: Myanmar's opposition leader Aung San Suu Kyi finally collected a human rights award in South Korea on Thursday, nearly a decade after it was conferred.

The democracy icon had been awarded the Gwangju Prize for Human Rights back in 2004, but was still under house arrest at the time and unable to receive it.

The prize is named for the southern South Korean city where a pro-democracy uprising in 1980 was brutally suppressed.

In her acceptance speech, Suu Kyi thanked the foundation behind the award and the many Korean pro-democracy activists who attended the ceremony.

"They are true friends and comrades who understand what we are going through because they have gone through the same troubles themselves," she said.

The Nobel peace laureate who was released in 2010 after spending the best part of two decades under house arrest, urged global support for political and economic reform in Myanmar.

"Over the last year, I was fortunate enough to visit ... countries I haven't seen for more than 20 years," she said.

"Visiting these countries and seeing how they have prospered, I am struck by the difference between the life of our people and that of those in more developed nations.

"I'm confident that as we move forward to democracy, we will have the support and help from our true friends, and in this way, we will be able to achieve peace and prosperity that we so desire," she added.

Suu Kyi arrived in South Korea on Monday for a four-day visit that has included meetings with outgoing President Lee Myung-Bak and his successor Park Geun-Hye.

Later Thursday, she was scheduled to meet with a collection of South Korea soap opera stars, including Lee Young-Ae and Ahn Jae-Wook, who are popular in Myanmar.

Lee was a main actress in the pan-Asian TV hit "Jewel in the Palace" and Ahn starred in the 1997 TV drama "Star in My Heart".

On Friday, she will deliver a speech at Seoul National University and accept an honorary doctorate.

- AFP/al

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Shutterstock's new tools revamp photo and video search

Shutterstock labs' Spectrum search results in the red range for images with the keyword "healthy."

(Credit:
screenshot by Stephen Shankland/CNET)

It's a challenge for anybody selling a wide range of anything online: how do you get the right products in front of the right customers?

Shutterstock, which sells stock-art photos and videos to customers such as ad agencies and PowerPoint presenters, has the matchmaking problem in spades. With 550,000 active customers and more than 23.7 million images, pairing the right buyer with the right photo isn't easy.

Which is why the New York-based company, which went public last October, is retooling how it presents its products to better compete with iStockphoto and other rivals.

Shutterstock has just launched a new stock image discovery tool called Spectrum on its labs site that lets people explore categories of photos based on their dominant color.

Shutterstock founder and CEO Jon Oringer

(Credit:
Shutterstock)

It's not the first such move. Last year, it launched an
iPad app whose "mosaic" interface presents wall-to-wall images that customers can browse rapidly by swipe gestures. A similar interface for the Web, Instant, was the first Shutterstock labs project.

And it's not the last, said Chief Executive and founder Jon Oringer: an overhaul for video is on the way so customers can evaluate footage with something approaching the ease and rapidity that they can check the results of searching for still images.

"With 50 thumbnail image results, it's very easy to scan. When it's 50 video clips, it's very hard to scan -- you don't know what's in each video," Oringer said. "We're working on ways to take that whole page of data and show it to you really quickly."

On top of that, the company takes a very Googley approach with its traditional photo-search techniques, in which customers type in search keywords and see an array of image thumbnails. "We're tracking hovers [where people direct their mouse pointers], clicks, and downloads," checking how customers refine searches and otherwise gathering data on what converts a search into a purchase, said Wyatt Jenkins, the company's vice president of product. "Our results are more relevant."

The formula is working, said Lee Torrens, who watches the industry closely at Microstock Diaries.

"They're innovating a lot on the buyer-side functionality, helping them catch up to iStock in terms of getting buyers to the image they're seeking as quickly as possible," Torrens said. "Overall, they're growing very quickly, remaining uniquely friendly to contributors, and pushing closer and closer towards iStock."

Shutterstock labs' Spectrum search results in the violet range for images with the keyword "healthy."

(Credit:
screenshot by Stephen Shankland/CNET)

The new search techniques can appeal to different designers or to the same designer in a different mood. With the new avenues for exploration, "We see people downloading different images. It gets their creativity moving in a different direction," Oringer said. And relative use of the iPad app increases on the weekends, he added.

So far, the company's held things together in its transition from private to public. Revenue for its most recently reported quarter, ended Sept. 30, increased to $42.3 million from $31.2 million the year earlier. Net income increased from $4.3 million to $6.6 million.

Shutterstock raised $82 million in its October IPO, when the shares went public at $17 piece. Its stock now trades above $24.

Oringer has a big stake in how things go at the 250-employee company -- indeed, by owning 55.2 percent of the company's stock, a controlling stake.

Shutterstock's share price has risen to the $24 range since its IPO at $17 in October.

(Credit:
Yahoo Finance)

Stock imagery in a nutshell
Stock photos are a staple in advertisers' imagery diet -- the senior couple strolling through the park, the fit-looking woman in a yoga pose, the businesspeople shaking hands. They're used in everything from annual reports to blog posts.

A decade ago, the stock-photo business moved from the hands of a relatively small number of professional photographers to a vastly larger pool of people as digital camera image quality improved and the Internet provided a global market. Making the commerce possible were microstock start-ups, led by iStockphoto, which old-school agency Getty Images acquired in 2006.

Microstock companies offered photos for relatively cheap on a "royalty-free" basis, meaning that customers could pay once to license a photo and then use it over and over in many ways. It's a much more liberal mechanism than the traditional rights-managed approach that came before, in which photo use is limited to particular geographic regions, times, and other constraints.

There are plenty of microstock companies out there -- well established Shutterstock competitors also include Dreamstime, Fotolia, and 123RF Images. With dozens of other out there, photographers can call on even more middlemen such as PicWorkFlow that'll retouch photos, add keywords, and upload to multiple microstock agencies.

Shutterstock tries to set itself apart. One way is that doesn't try to draw contributors into exclusive partnerships that increase royalty payments if photographers sell imagery only through a single microstock.

"The bottom line is that as a microstock photographer it just doesn't make sense to be exclusive to any one agency," Oringer said in a blog post. Among the company's reasons for not offering exclusivity: "Image marketplaces that offer exclusivity to contributors must favor certain images...While other agencies sort their search results based on maximizing revenue, we maximize on search success."

Sales by subscription
Another distinguishing feature is that Shutterstock offers a subscription model. Customers that spend $249 a month (or less, if they sign up for longer periods of time) may download up to 25 images each day. Most microstocks, in contrast, sell images one at a time, an option Shutterstock also offers.

About half the company's revenue comes from subscription plans, according to the company's regulatory filings. (Video footage, a fast-growing part of the company's business, is not available through subscriptions.)

And Wall Street likes subscription businesses, with their lower churn rates.

"What makes us a good candidate for going public is we are at the core a subscription product with predictable, repeat, recurring revenue helps smooth things out on a quarter-to-quarter basis," Oringer said. "In general, we have remarkable consistency in terms of acquiring subscribers and monitoring how much they download. That's been stable. If the stability was changing, we probably would taken a different route -- gone for a more private kind of equity raise."

Shutterstock labs' Spectrum search results in the blue range for images with the keyword "healthy."

(Credit:
Stephen Shankland/CNET)

Subscriptions might seem like a bad idea for the contributing photographers who supply Shutterstock with images. The company only passes on 25 cents per photo to photographers for a shot sold via a subscription plan, according to Shutterstock's photographer payout formula, though that rate goes up to as much as 38 cents as the photographer's lifetime photo sales increase.

In contrast, an on-demand purchase of a single image generates 81 cents to $1.24 for lower-resolution images and $1.88 to $2.85 for high resolution.

Low cost, high volume
But subscriptions can also encourage customers to loosen up, downloading images more often and not losing a lot of sleep over which one is best or over which resolution to buy, Oringer said.

"Shutterstock is selling more images than anybody else in the world," with two images downloaded each second on average, Jenkins said. "In sheer volume, we're the clear leader...The subscription is a motivator."

And of course customers who like it will continue with their subscriptions, which ultimately is good for Shutterstock contributors. Shutterstock customers who spent money in 2010 spent more than double as much in 2011, accordinging to a company regulatory filing. And from 2010 to 2011, customer growth was 71 percent. (The company hasn't yet released 2012 statistics.)

The approach is the opposite of iStockphoto's strategy, which emphasizes upselling customers to expensive images, but Torrens said it works.

"Their business model still makes them the cheapest of the cheap," Torrens said. But photographers forget about that fact, "especially when Shutterstock sends them more money at the end of the month than any other agency."

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New Theory on How Homing Pigeons Find Home

Jane J. Lee

Homing pigeons (Columba livia) have been prized for their navigational abilities for thousands of years. They've served as messengers during war, as a means of long-distance communication, and as prized athletes in international races.

But there are places around the world that seem to confuse these birds—areas where they repeatedly vanish in the wrong direction or scatter on random headings rather than fly straight home, said Jon Hagstrum, a geophysicist who authored a study that may help researchers understand how homing pigeons navigate.

Hagstrum's paper, published online Wednesday in the Journal of Experimental Biology, proposes an intriguing theory for homing pigeon disorientation—that the birds are following ultralow frequency sounds back towards their lofts and that disruptions in their ability to "hear" home is what screws them up.

Called infrasound, these sound waves propagate at frequencies well below the range audible to people, but pigeons can pick them up, said Hagstrum, who works at the U.S. Geological Survey in Menlo Park, California.

"They're using sound to image the terrain [surrounding] their loft," he said. "It's like us visually recognizing our house using our eyes."

Homeward Bound?

For years, scientists have struggled to explain carrier pigeons' directional challenges in certain areas, known as release-site biases.

This "map" issue, or a pigeon's ability to tell where it is in relation to where it wants to go, is different from the bird's compass system, which tells it which direction it's headed in. (Learn about how other animals navigate.)

"We know a lot about pigeon compass systems, but what has been controversial, even to this day, has been their map [system]," said Cordula Mora, an animal behavior researcher at Bowling Green State University in Ohio who was not involved in the study.

Until now, the two main theories say that pigeons rely either on their sense of smell to find their way home or that they follow the Earth's magnetic field lines, she said.

If something screwed up their sense of smell or their ability to follow those fields, the thinking has been, that could explain why pigeons got lost in certain areas.

But neither explanation made sense to Hagstrum, a geologist who grew interested in pigeons after attending an undergraduate lecture by Cornell biologist William Keeton. Keeton, who studied homing pigeons' navigation abilities, described some release-site biases in his pigeons and Hagstrum was hooked.

"I was just stunned and amazed and fascinated," said Hagstrum. "I understand we don't get dark matter or quantum mechanics, but bird [navigation]?"

So Hagstrum decided to look at Keeton's pigeon release data from three sites in upstate New York. At Castor Hill and Jersey Hill, the birds would repeatedly fly in the wrong direction or head off randomly when trying to return to their loft at Cornell University, even though they had no problems at other locations. At a third site near the town of Weedsport, young pigeons would head off in a different direction from older birds.

There were also certain days when the Cornell pigeons could find their way back home from these areas without any problems.

At the same time, homing pigeons from other lofts released at Castor Hill, Jersey Hill, and near Weedsport, would fly home just fine.

Sound Shadows

Hagstrum knew that homing pigeons could hear sounds as low as 0.05 hertz, low enough to pick up infrasounds that were down around 0.1 or 0.2 hertz. So he decided to map out what these low-frequency sound waves would have looked like on an average day, and on the days when the pigeons could home correctly from Jersey Hill.

He found that due to atmospheric conditions and local terrain, Jersey Hill normally sits in a sound shadow in relation to the Cornell loft. Little to none of the infrasounds from the area around the loft reached Jersey Hill except on one day when changing wind patterns and temperature inversions permitted.

That happened to match a day when the Cornell pigeons had no problem returning home.

"I could see how the topography was affecting the sound and how the weather was affecting the sound [transmission]," Hagstrum said. "It started to explain all these mysteries."

The terrain between the loft and Jersey Hill, combined with normal atmospheric conditions, bounced infrasounds up and over these areas.

Some infrasound would still reach Castor Hill, but due to nearby hills and valleys, the sound waves approached from the west and southwest, even though the Cornell loft is situated south-southwest of Castor Hill.

Records show that younger, inexperienced pigeons released at Castor Hill would sometimes fly west while older birds headed southwest, presumably following infrasounds from their loft.

Hagstrum's model found that infrasound normally arrived at the Weedsport site from the south. But one day of abnormal weather conditions, combined with a local river valley, resulted in infrasound that arrived at Weedsport from the Cornell loft from the southeast.

Multiple Maps

"What [Hagstrum] has found for those areas are a possible explanation for the [pigeon] behavior at these sites," said Bowling Green State's Mora. But she cautions against extrapolating these results to all homing pigeons.

Some of Mora's work supports the theory that homing pigeons use magnetic field lines to find their way home.

What homing pigeons are using as their map probably depends on where they're raised, she said. "In some places it may be infrasound, and in other places [a sense of smell] may be the way to go."

Hagstrum's next steps are to figure out how large an area the pigeons are listening to. He's also talking to the Navy and Air Force, who are interested in his work. "Right now we use GPS to navigate," he said. But if those satellites were compromised, "we'd be out of luck." Pigeons navigate from point to point without any problems, he said.

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Obama Prods GOP on Immigration Negotiations

Jan 31, 2013 6:00am

                                                                        (Image Credit: John Gurzinski/Getty Images)

President Obama has apparently had enough of leading from behind.

During the health-care push, Obama left Congress to its own devices. On immigration, he’s doing just the opposite, attempting to prod Republican legislators to the middle by demanding a vote on his own plan.

The president insisted Tuesday that Congress vote on his plan as soon as possible, barring agreement on something else.

“It’s important for us to recognize that the foundation for bipartisan action is already in place,” Obama said, referring to a bipartisan Senate bill offered up by the so-called Gang of Eight senators, which looks much more palatable to Republicans than Obama’s own plan. “And if Congress is unable to move forward in a timely fashion, I will send up a bill based on my proposal and insist that they vote on it right away.”

In doing so, Obama dared Congress to say “no” to something specific.

It’s the same strategy Obama used in the “fiscal-cliff” talks. With a year-end deadline approaching, he pushed Congress to vote on his own plan: to let higher income tax hikes go into effect if lawmakers couldn’t cut a deal themselves. Obama asked Senate Majority Leader Harry Reid of Nevada to call “an up-or-down vote” on that plan, the president announced in a Dec. 28 appearance before cameras at the White House.

“If members of the House or the Senate want to vote ‘no,’ they can, but we should let everybody vote,” Obama said then.

Republicans hate such a negotiation tactic. Throughout Obama’s White House tenure, GOP aides have griped that the president and congressional Democrats have sought political gain while refusing to negotiate in good faith. On immigration, it’s the same.

The Obama plan includes a faster path to citizenship and nothing to trigger border-security enforcement. It would also clear an easier path for same-sex couples.

Before Obama rolled out his immigration plan in Nevada Tuesday, Sen. Marco Rubio of  Florida raised concerns that the president would launch a “bidding war.”

In a radio interview with Rush Limbaugh, Rubio dismissed the notion of an up-or-down vote: “It’s going to have to go through committees and people are going to have their input. There’s going to be public hearings.  I don’t want to be part of a process that comes up with some bill in secret and brings it to the floor and gives people a take it or leave it.

“I want this place to work the way it’s supposed to work, with every senator having input and the public having input,” Rubio said.

A Senate Republican aide jabbed, “The president’s been gone from the Senate a long time and perhaps he has forgotten that it’s a lot easier to pass legislation if he works with Congress.”

Obama has presented Republicans with a plan they will like much less than what’s been crafted by the bipartisan Senate group. The group plan includes triggers to enforce border-security measures, more unmanned drones and no provisions making it easier for same-sex couples seeking to immigrate or naturalize.

Unless other Republicans come up with a plan of their own, the president has given Republicans a choice between the left and the middle. It’s not hard to tell which they’d prefer.

SHOWS: Good Morning America World News

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Earth and others lose status as Goldilocks worlds

Bad news for Kepler-22b. Once deemed the most habitable world outside our solar system, it no longer looks life-friendly. More strangely, Earth's habitability rating has also taken a hit. Both results are thanks to a redefinition of the habitable zone – the region around a star in which liquid water can theoretically exist.

Also known as the Goldilocks zone, because temperatures are "just right" for life there, the habitable zone is the main tool that exoplanet hunters have to rank their finds. But researchers are still using a definition coined in 1993. "Those habitable zones have not been updated in the last 20 years," says Ravi Kopparapu of Penn State University.

He and his colleagues have a new definition. The zone's boundaries have always depended on the star's temperature, plus estimates of how well the atmospheres of any planets would absorb heat from their star. But in recent years, lab experiments have turned up new figures for how water and carbon dioxide absorb light from different types of stars. The redefinition is based on these figures – and pushes the zone further from the star than the old definition.

Now, many planets, including supposedly balmy Kepler-22b, look too hot. However, the redefinition should also bring into the habitable fold planets that were thought to be too cold.

No ultimate judge

Shockingly, Earth – which used to be smack-bang in the middle of our sun's habitable zone – is now a scant million kilometres away from the warm edge, so almost too hot for liquid water. Of course, we know Earth is robustly life-friendly – the mismatch is probably because neither definition accounts for clouds, which reflect sunlight away from Earth.

As Earth shows, the Goldilocks zone is no ultimate judge of habitability, something exoplanet researchers have known for years. As well as clouds, volcanic activity or the location of other moons or planets in the solar system, may be important for life to develop on planets like Earth.

For now, however, with clouds not visible on an exoplanet, and many other details unknown about alien solar systems, the habitable zone is the best guide we've got – and thanks to Kopparapu's team, it just got a bit better.

"I think this is going to be the new gold standard for the habitable zone," says Rory Barnes of the University of Washington in Seattle, who was not involved in the new work. "But I think we should always look at planets in the habitable zone and say, maybe. It's not that planets in the habitable zone are inhabited, it just means we can't rule them out yet."

Journal reference: arxiv.org/abs/1301.6674

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Cricket: Warne calls for new Australia coach

SYDNEY: Test great Shane Warne on Wednesday called on Australia coach Mickey Arthur to be replaced by former New Zealand skipper Stephen Fleming days after branding the nation's cricket chiefs "muppets".

The outspoken leg-spinner, who said he was "frustrated on many levels at present", praised Fleming as "the best opposition captain we played against" on his website www.shanewarne.com.

"I believe he brings a lot to the table, a calmness, an intelligent understanding of the game and a very good cricket brain. He's a good communicator too as well as a good leader of men."

Warne, 43, who also wants former Test wicketkeeper Rod Marsh as chairman of selectors, said the current Australian set-up was not working as the players gear up for two Ashes series against England over the next year.

In a post entitled "Where is Australian cricket at? Part 1" on his website, Warne said: "The next 12 months is the biggest 12 months of cricket for the Australian cricket team in a long, long time.

"If we do nothing now, we will be where we were 30 years ago. There needs to be urgent action and a new strategy/plan put in place."

In Twitter comments on Monday, Warne blasted Cricket Australia's policy of rotating players, which has attracted stinging criticism from other greats of the game.

Cricket Australia CEO James Sutherland has told Warne he is happy to discuss Warne's ideas but has expressed disappointment with the manner in which he expressed his concerns, CA said on its website.

Australia, third in the Test and one-day rankings, lost the recent Twenty20 series against Sri Lanka after drawing the one-day series and beating the visitors in the Test series.

Warne was last week fined A$5,000 (US$5,250) for a code of behaviour breach in the domestic Big Bash League.

And he apologised earlier this month after a foul-mouthed rant against West Indian all-rounder Marlon Samuels that earned him a ban and a A$4,500 fine.

Warne claimed 708 Test wickets in a celebrated career that also courted controversy, including a fine for taking money from a bookmaker. He was sent home from the 2003 World Cup for taking a banned diuretic.

Also on Wednesday, CA said that Australian pace great Dennis Lillee has been appointed to CA's's high-performance team as a fast bowling advisor.

- AFP/al

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Michael Dell to use personal funds to seek majority control -- report

Dell founder and Chief Executive Michael Dell.

(Credit:
James Martin/CNET)

Just weeks after reports surfaced that Dell was looking to go private, the company's founder appears willing to put his personal funds where his mouth is.

Michael Dell may kick in equity financing of $500 million to $1 billion combined with his 15.7 percent stake in the company to seek majority control of the company, according to Bloomberg. That would push his ownership stake past 50 percent.

With the investment, Dell would be contributing more than half of the total $8 billion to $9 billion equity check. The remainder of the takeover would be financed by debt and "possibly some of the $11 billion of cash Dell reported it had as of September 30," according to Bloomberg.

This follows on the heels of reports that Microsoft may contribute $1 billion to $3 billion and was in talks with Silver Lake Partners to help take Dell private.

However, the WSJ today reported that Microsoft's role in the new company has been a sticking point in negotiations. Though the deal is still expected to stay on track, Microsoft wants to have a say in some of Dell's operations rather than just being a source of funding, according to the WSJ's sources.

Dell, a one-time leading PC maker, has hit hard times of late. The company's stock has continued to lose value as it defends itself against rivals, and despite the many acquisitions it's made over the past several years, there are concerns about how fast those businesses are taking off. Some industry watchers are hoping that going private could give it the reboot that it needs.

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Timbuktu’s vulnerable manuscripts are city’s "gold"

French and Malian troops surrounded Timbuktu on Monday and began combing the labyrinthine city for Islamist fighters. Witnesses, however, said the Islamists, who claim an affiliation to al Qaeda and had imposed a Taliban-style rule in the northern Malian city over the last ten months, slipped into the desert a few days earlier.

But before fleeing, the militants reportedly set fire to several buildings and many rare manuscripts. There are conflicting reports as to how many manuscripts were actually destroyed. (Video: Roots of the Mali Crisis.)

On Monday, Sky News posted an interview with a man identifying himself as an employee of the Ahmed Baba Institute, a government-run repository for rare books and manuscripts, the oldest of which date back to the city's founding in the 12th century. The man said some 3,000 of the institute's 20,000 manuscripts had been destroyed or looted by the Islamists.

Video showed what appeared to be a large pile of charred manuscripts and the special boxes made to preserve them in front of one of the institute's buildings.

However, a member of the University of Cape Town Timbuktu Manuscript Project told eNews Channel Africa on Tuesday that he had spoken with the director of the Ahmed Baba Institute, Mahmoud Zouber, who said that nearly all of its manuscripts had been removed from the buildings and taken to secure locations months earlier. (Read "The Telltale Scribes of Timbuktu" in National Geographic magazine.)

A Written Legacy

The written word is deeply rooted in Timbuktu's rich history. The city emerged as a wealthy center of trade, Islam, and learning during the 13th century, attracting a number of Sufi religious scholars. They in turn took on students, forming schools affiliated with's Timbuktu's three main mosques.

The scholars imported parchment and vellum manuscripts via the caravan system that connected northern Africa with the Mediterranean and Arabia. Wealthy families had the documents copied and illuminated by local scribes, building extensive libraries containing works of religion, art, mathematics, medicine, astronomy, history, geography, and culture.

"The manuscripts are the city's real gold," said Mohammed Aghali, a tour guide from Timbuktu. "The manuscripts, our mosques, and our history—these are our treasures. Without them, what is Timbuktu?"

This isn't the first time that an occupying army has threatened Timbuktu's cultural heritage. The Moroccan army invaded the city in 1591 to take control of the gold trade. In the process of securing the city, they killed or deported most of Timbuktu's scholars, including the city's most famous teacher, Ahmed Baba al Massufi, who was held in exile in Marrakesh for many years and forced to teach in a pasha's court. He finally returned to Timbuktu in 1611, and it is for him that the Ahmed Baba Institute was named.

Hiding the Texts

In addition to the Ahmed Baba Institute, Timbuktu is home to more than 60 private libraries, some with collections containing several thousand manuscripts and others with only a precious handful. (Read about the fall of Timbuktu.)

Sidi Ahmed, a reporter based in Timbuktu who recently fled to the Malian capital Bamako, said Monday that nearly all the libraries, including the world-renowned Mamma Haidara and the Fondo Kati libraries, had secreted their collections before the Islamist forces had taken the city.

"The people here have long memories," he said. "They are used to hiding their manuscripts. They go into the desert and bury them until it is safe."

Though it appears most of the manuscripts are safe, the Islamists' occupation took a heavy toll on Timbuktu.

Women were flogged for not covering their hair or wearing bright colors. Girls were forbidden from attending school, and boys were recruited into the fighters' ranks.

Music was banned. Local imams who dared speak out against the occupiers were barred from speaking in their mosques. In a move reminiscent of the Taliban's destruction of Afghanistan's famous Bamiyan Buddha sculptures, Islamist fighters bulldozed 14 ancient mud-brick mausoleums and cemeteries that held the remains of revered Sufi saints.

A spokesman for the Islamists said it was "un-Islamic" for locals to "worship idols."

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NRA vs. Mark Kelly at Gun Violence Hearing

It's a showdown on guns, featuring two powerful but conflicting forces in the gun control movement -- Mark Kelly, the astronaut husband of Rep. Gabrielle Giffords, D-Ariz.; and Wayne LaPierre, the fiery executive vice president and CEO of the National Rifle Association. The two testify before the Senate Judiciary Committee today in the first congressional hearing on gun violence since the deadly shooting at Sandy Hook Elementary School in Newtown, Conn. last month.

Kelly, whose wife was seriously injured in the mass shooting that killed six people in Tucson, Ariz. two years ago, will appear on the panel, just weeks after launching Americans for Responsible Solutions, an organization promoting the implementation of universal background checks and limits on high capacity magazines.

"Overwhelmingly, you told us that universal background checks and limiting access to high capacity magazines were top priorities -- and I'll make sure to address each of those ideas in my opening remarks," Kelly wrote in an email to supporters Tuesday. Kelly asked the group's allies to sign a petition calling on Congress to pass legislation on both issues.

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On the opposite end of the spectrum is LaPierre, who states the NRA's opposition to universal background checks and urges legislators not to "blame" legal gun owners by enacting new gun control laws.

"Law-abiding gun owners will not accept blame for the acts of violent or deranged criminals. Nor do we believe the government should dictate what we can lawfully own and use to protect our families," LaPierre was to say Wednesday, according to prepared remarks released by the NRA.

"Proposing more gun control laws -- while failing to enforce the thousands we already have -- is not a serious solution to reducing crime," says LaPierre in his prepared text.

In the wake of the shooting in Newtown, Conn., the NRA advocated placing armed security guards in every school in America, an initiative LaPierre will promote in Wednesday's hearing, arguing that "it's time to throw an immediate blanket of security around our children."

In an interview with ABC News' Diane Sawyer earlier this month, Kelly and Giffords said they hope the Sandy Hook shooting, in which twenty children and six adults died, will spur legislative action on gun policy.

"Enough," Giffords said.

"After the shooting in Tucson, there was talk about addressing some of these issues, [and] again after [the movie theater massacre in] Aurora," Colo., Kelly said. "I'm hopeful that this time is different, and I think it is. Twenty first-graders being murdered in their classrooms is a very personal thing for everybody."

Today's hearing is the first meeting ever for Kelly and LaPierre, according to an interview Kelly gave to CNN Tuesday. Kelly, who has shot at an NRA practice range with his wife, noted that he is a gun enthusiast but is not a member of the NRA.

"You would think with my background I would be a member of the NRA. I own a gun. I recently bought a hunting rifle a few months ago. I went through a background check. It took I think about 20 minutes. It's a small price to pay to make us safer. We're not going to stop every one of these mass shootings. We're not going to stop every murder with a handgun in our cities, but I think we'd go a long way to reducing the violence and preventing some," Kelly told CNN.

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Netted Costa Rican birds pay small price for art

Colin Barras, contributor

See more in our gallery: "Creatures of the air caught in the mist"

MILDLY distressed and hopelessly tangled, these birds look like the poster children for some environmental tragedy of our own making. In reality, they are the face of modern ornithology.

Todd Forsgren, a photographer based in Baltimore, Maryland, is fascinated by the long and intertwined history of birds and art. The two meet in the mist nets researchers use to trap Costa Rica's wild birds, which cause a short-lived, slight shock but no injury. The Montezuma oropendola (left) and boat-billed flycatcher (right) caught here are moments from being freed. "I hope as people learn more about the moderately traumatic process of mist net trapping, they will see the images as beautiful," says Forsgren.

Earlier generations of birds have paid a higher price in the name of art. Forsgren draws inspiration from the lifelike paintings that feature in John James Audubon's famous 19th-century monograph The Birds of America, which is among the most valuable of all printed books. But their lifelike poses are deceiving: Audubon shot and mounted his birds before painting them.

A century later, bird art was at the forefront of the new environmental movement. Artist and ornithologist Roger Tory Peterson used photographs to paint an early field guide to the birds of North America. Because of people like him, binoculars, not shotguns, became the ornithologist's primary tool.

Today, through advances in technology, it is radio transmitters that are cracking the remaining mysteries of bird ecology. That's where the mist nets come in, offering an easy and safe way to catch birds so that the transmitters can be fitted. "My photographs are about our world progressing, and moving forwards in some direction," says Forsgren.

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All 20 on board Kazakh airliner "killed in crash"

ALMATY, Kazakhstan: All 20 people on board a domestic flight in Kazakhstan operated by the SCAT airline died Tuesday when their Bombardier jet crashed on approach to Almaty airport in thick fog, the airline said.

"Twenty people were on board -- five crew members and 15 passengers," the airline said in a statement, quoted by the Interfax news agency.

"According to preliminary information there are no survivors," the statement added, saying the aircraft was a CRJ-200 made by Canadian manufacturer Bombardier.

SCAT said the plane went down about five kilometres (three miles) short of the financial centre's main airport on a flight from the northern steppe city of Kokshetau.

Commercial KTK television said the plane crashed into a suburb of Almaty but gave no information of possible casualties or damage on the ground.

The Kazinform news agency reported that officials from both the interior and transportation ministry had travelled to the site of the crash.

The accident came just a month after a crash that killed 27, claiming the lives of much of the top echelon of the Kazakh state border service including the acting chief.

Aviation disasters remain a scourge across the former Soviet Union due to ageing hardware that often has not been replaced since the fall of the Soviet regime, as well as human error.

- AFP

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Forget Episode VII, watch 'JJ Abrams Star Wars - The Musical'

Are you a late-model "Star Trek" fan with issues about your guy J.J. Abrams jumping ship in order to direct the next "Star Wars" film? Or maybe a "Star Wars" devotee filled with dread at having your favorite franchise be under the control of someone who's directed two "Star Trek" films?

If so, there's a musical for you. "JJ Abrams Star Wars -- The Musical," to be precise.

Picture Darth Vader and Abrams singing at each other on a pier. Picture Vader shaming Abrams -- well, a very poor look-alike at least -- with a line like, "So you think // you can walk right in // You who joined with the other side // You now betray every 'Star Trek' fan // You have crushed their pride." And then Abrams' rejoinder, "It is true // That I have jumped ship // I was always a Star (Trek) Wars guy // I cannot pass on this perfect chance // Let's see eye to eye."

This is YouTube silliness at its best. It's topical, it's funny (sort of), and it's camp of the highest order. What's not to love?

George Lucas and new 'Star Wars Episode VII' director J.J. Abrams.

(Credit:
Joi Ito)

Abrams, of course, was recently named the director of the "Star Wars Episode VII" after already directing 2009's "Star Trek," and the forthcoming "Star Trek Into Darkness."

Some, of course, wonder whether someone with such a "Star Trek" pedigree can switch sides.

But as our musical's fictional Abrams notes to the incredulous Vader, he will return the "Star Wars" franchise to its glory days, starting with what every real fan's obvious first step: killing off Jar Jar.

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Space Pictures This Week: Martian Gas, Cloud Trails

Image courtesy SDO/NASA

The sun is more than meets the eye, and researchers should know. They've equipped telescopes on Earth and in space with instruments that view the sun in at least ten different wavelengths of light, some of which are represented in this collage compiled by NASA and released January 22. (See more pictures of the sun.)

By viewing the different wavelengths of light given off by the sun, researchers can monitor its surface and atmosphere, picking up on activity that can create space weather.

If directed towards Earth, that weather can disrupt satellite communications and electronics—and result in spectacular auroras. (Read an article on solar storms in National Geographic magazine.)

The surface of the sun contains material at about 10,000°F (5,700°C), which gives off yellow-green light. Atoms at 11 million°F (6.3 million°C) gives off ultraviolet light, which scientists use to observe solar flares in the sun's corona. There are even instruments that image wavelengths of light highlighting the sun's magnetic field lines.

—Jane J. Lee

Published January 28, 2013

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5 Years Later, What's New on Immigration Reform?

The announcement of a proposal for immigration reform inspired renewed excitement for some involved in the fight Monday, but other players in the debate felt a sense of déjà vu.

Monday afternoon, senators introduced a framework of changes previewed over the weekend, with President Obama and a secret group from the House of Representatives expected soon to follow suit.

The press conference was held by Senators Chuck Schumer, John McCain, Dick Durbin, Lindsey Graham, Bob Menendez, Marco Rubio, Michael Bennet and Jeff Flake. Menendez called it "meaningful and comprehensive" immigration reform.

But former Sen. Mel Martinez, R-Fla., who worked on this same issue under President George W. Bush in 2007, said this proposal "is a lot like what we did five years ago -- remarkably so."

Martinez said it puts "a little more emphasis" on dealing with legal immigrants who overstay their visas, shifts from framing the policies as reuniting families to rewarding skilled laborers, and the phrase "guest worker" -- which was a point of contention then -- is now absent.

But in terms of things like creating a path to citizenship and requiring an electronic verification system for employers to determine an applicant's legal status, "All of these things are exactly what we did before," Martinez said.

J. Scott Applewhite/AP Photo| Susan Walsh/AP Photo

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To Martinez, this replay is a good thing. He said a "political evolution" and a new appreciation for Hispanic voters created a positive climate for reforms this time around.

But Ira Mehlman of the Federation for American Immigration Reform said he is not impressed.

"It's essentially the same legislation that was offered and rejected in 2007," Mehlman told ABC News."It includes nothing for the primary constituency -- namely the American public. It's all based on what the immigrants and particularly the illegal immigrants want and what employers want."

The two plans focused on achieving bipartisan support, molding immigration law to meet the needs of the economy, and the condition that reform would only happen simultaneously with the strengthening of border security.

The difference, according to immigration lawyer Cori Alonso-Yoder of immigrant-focused non-profit Ayuda, is the messaging in this proposal.

"The message is very helpful to people who are used to hearing a not-welcoming tone towards immigrants," Alonso-Yoder said Monday. "I think that's sort of what distinguishes this from efforts that we saw in 2006, 2007 things that I think were more harsh on immigrants."

This time around the plan alludes to racial profiling and human trafficking, two issues Alonso-Yoder said her clients "confront on a daily basis and are dealing with on a daily basis."

Related: 'Dreamers' React to the New Immigration Reform Framework

She said she believes the intent in this legislation is good and that it will have some success -- at least outside of the House of Representatives.

"My concern is just seeing how this will all sort of play out in a system that is already filled with patchwork fixes, and how deep this reform will go, how broad it will sweep," Alonso-Yoder said.

The collapse of President George W. Bush's 2007 immigration bill may be a bad sign for Obama -- who is expected to announce his own plan today -- and others hoping to change the immigration system.

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Stellar performances finally gain the limelight

Michael Brooks, consultant

(Image: Five Finger Yamanaka/courtesy of Phil Ross)

In Heart of Darkness, Jeremiah P. Ostriker and Simon Mitton add new stars to the constellation of astronomy to tell the subject's full history

WE HAVE all heard of the Hubble Space Telescope, named after Edwin Hubble, but where is the Tinsley telescope?

Beatrice Tinsley was an excellent astronomer, but her career was stymied by an establishment set against giving a salary to the wife of an academic - even if she was also a gifted scientist. Tinsley made at least two vital contributions to our understanding of the universe's history, but she had to divorce her husband and grant him custody of the children to get any recognition of her talents.

In Heart of Darkness, Jeremiah Ostriker and Simon Mitton explore modern cosmology while recasting what they term the "simple linear parade of heroes" of standard accounts. Among the uncelebrated stars of cosmology they discuss, Tinsley shines brightest, but there are others: Milton Humason, a poorly educated mule-driver and janitor who assisted Hubble in his observations, and Vesto Slipher, who, despite working in the shadow of a boss obsessed with finding evidence for Martian civilisations, made the first observations that told us about the expansion of the universe.

Why do some names last and others fade? As well as being a great astronomer, Hubble was a "showman", and a "comfortable celebrity", say Ostriker and Mitton. Tinsley, meanwhile, was diagnosed with cancer the year she finally made full professor (at Yale). She died four years later, aged 40. Like a supernova, she burned brightly but briefly. Hopefully, this thorough and inspiring book will secure her a place in cosmological history.

Not that Ostriker and Mitton's book is focused solely on people - quite the opposite. Relatively few biographical details are given: it is their scientific contributions that are explored - and with aplomb.

This is a strong, confident book, easily one of the best guides to why cosmologists make the claims they do. Yet for all their redistribution of credit, the cosmology that the authors set out remains uncontroversial. It is the universe that began in a singularity, passed through a period of rapid inflation, and is now dominated by dark matter and dark energy. The state of our knowledge, they say, represents a "stunning" accomplishment.

This is the dilemma of modern cosmology: what counts as success? Summing up, Ostriker and Mitton simultaneously cite a "pretty impressive list of successes" while acknowledging that cosmology is "profoundly incomplete". We don't know what caused the inflation, what constitutes dark matter or what lies behind dark energy. In the end, the authors settle for a declaration that there's plenty for future cosmologists to do.

If there is one flaw in this crystal clear book, it's a lack of depth in the discussion of the dark side of the universe. It provides the book's title and is supposed to account for 96 per cent of the universe, but is confined to two chapters towards the end. Alternatives to dark matter are dismissed in little more than a paragraph and compared to pre-Copernican efforts to keep the Earth at the centre of the cosmos. When many respected scientists support the continued search for alternatives, that seems somewhat disingenuous.

Were she still with us, Tinsley would no doubt argue that there are compelling reasons to believe in the existence of dark matter, but that there are good reasons to consider alternatives, too. Her unique contribution to cosmology was to persuade a dismissive establishment that galaxies change their properties over time. In so doing, she exposed a gaping hole in the cosmology of the 1970s. It was a supreme achievement, if unwelcome.

Clearly, if you want your name to go down in history (or onto a telescope) it's better to be a showman than a troublemaker. But if the history of science teaches us anything, it's that the troublemakers should be celebrated too.

Book information:
Heart of Darkness: Unraveling the mysteries of the invisible universe by Jeremiah P. Ostriker and Simon Mitton
Princeton University Press
£19.95/$27.95

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One dead in Cairo clashes as political turmoil escalates

CAIRO: One person was killed in Cairo on Monday as clashes between police and protesters raged into a fifth day, and President Mohamed Morsi scrambled to contain deepening divisions with calls for national dialogue.

The unidentified man was killed by birdshot to the head, a police official told AFP, as demonstrators and police lobbed rocks at each other on a bridge and in an underpass leading to Tahrir Square and tear gas hung heavily in the air.

Morsi late on Sunday sought to crack down on violence which has swept Egypt since Friday in which more than 45 people have died, declaring a month-long state of emergency in the provinces of Port Said, Suez and Ismailiya.

In a televised address he also slapped the three provinces with night-time curfews, while calling the opposition -- which accuses him of betraying the revolution that brought him to power -- to a national dialogue at the presidential palace at 6:00 pm (1600 GMT) Monday.

Specifically included in the invitation for talks are the three leaders of National Salvation Front (NSF) opposition coalition, leading dissident and founder of Al-Dustur party Mohamed ElBaradei, former Arab League chief Amr Mussa and presidential candidate Hamdeen Sabbahi.

The NSF was to meet in the early afternoon to consider a response to Morsi's call, Hussein Gohar of the Egyptian Social Democratic Party told AFP.

In a statement late Sunday, Sabbahi's movement expressed its "refusal to participate amid the continuing bloodshed and continuing crimes by the regime against demonstrators".

It said it believes that "any serious call for dialogue needs real guarantees for success, the most important being that the president offers political solutions and security."

ElBaradei said on Twitter that "if the president does not assume responsibility for the bloody events, does not commit to the formation of a salvation government and a committee to amend the constitution, all dialogue is a waste of time."

The unrest highlights the deep split between Morsi's mainly Islamist allies, and an opposition of leftists, liberals, Christians and deeply religious Muslims calling for freedom and the separation of the state from religion.

It also underscores the long-standing tensions between protesters and a police force long accused of human rights abuses.

Morsi's television address, in which he appeared both flustered and angry, came after a second day of rioting rocked Port Said sparked by death sentences handed down on Saturday against supporters of a local football club Al-Masry over stadium violence last year that killed 74 people.

At least 46 people have lost their lives in the Suez Canal cities in three days, with Port Said the worst hit with 37 fatalities. Hundreds have also been injured in the violence.

On Sunday, as thousands marched in the funeral procession of Port Said residents who died in clashes a day earlier, chanting "Our city is being hit by the interior ministry" and "Down with Brotherhood rule!" bursts of gunfire scattered mourners amid chaotic scenes that brought on more rioting.

Crowds attempted to storm three police stations in the Port Said, while others looted and torched an army social club, security officials said.

Unrest also erupted on Sunday in Suez, another canal city, where protesters surrounded a police station, lobbed Molotov cocktails at security forces and blocked the road leading to the capital, security officials said.

Morsi warned that he was ready to take further measures unless there was an end to the deadly unrest that has swept Egypt since Friday, when protests to mark the second anniversary of the anti-Mubarak revolt turned violent.

A few hundred people took to the streets of Ismailiya just after Morsi's announcement and clashed with police, an AFP correspondent said. A medical source said six people had been injured.

Egypt was under a state of emergency for more than three decades in the wake of the assassination of president Anwar Sadat in 1981 and until May last year, a month before Morsi was elected.

Ending the state of emergency -- which allowed authorities to detain people without charge and try them in emergency security courts -- was a key demand of protesters who toppled Hosni Mubarak in 2011.

- AFP/xq

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