Mood-sensing smartphone tells your shrink how you feel

PEOPLE with anxiety, depression or stress are often asked to record their mood changes throughout the day, helping psychologists fine-tune their treatment. But they often forget, recording only sparse information at best. Now an emotion-sensing smartphone app that automatically generates someone's "mood diary" could give psychologists all the data they need.

It's the brainchild of Matt Dobson and Duncan Barclay, founders of speech recognition firm EI Technologies, based in Saffron Walden, UK. Instead of relying on people writing diaries, the app, called Xpression, listens for telltale changes in a person's voice that indicate whether they are in one of five emotional states: calm, happy, sad, angry or anxious/frightened. It then lists a person's moods against the times they change, and automatically emails the list to their psychologist at the end of the day.

To work, the app has to be always on, listening out for the user's voice once every second, whether they are talking to family, friends, colleagues or even pets. It also listens in on phone calls. If the user is silent, the app does nothing. Crucially for the users' privacy, it doesn't record their words, instead seeking out telltale acoustic features – like pitch – that are indicative of emotional state.

This kind of emotion recognition via voice pattern already works well and is a "hot area" of research, says Stephen Cox, head of the speech processing lab at the University of East Anglia in Norwich, UK, who is scientific adviser for the firm.

Initially, Xpression will send 200-millisecond-long acoustic snapshots to a remote server where a machine-learning system will work out a person's emotional state before sending it back to the app for storage. Factors like voice loudness, intensity, changes in pitch and speaking pace allow the system to accurately estimate somebody's emotional state. "We extract acoustic features and let the machine-learning system work it out," says Cox. This ability will be built into the app itself eventually, says Dobson.

There's a strong need for this kind of technology, says Adrian Skinner, a clinical psychologist with the UK's National Health Service in Harrogate, North Yorkshire. "With conditions like depression, people tend to stop doing things like filling in mood diaries. If this app gives us more complete diaries it could help us better find the day-to-day triggers that raise or lower a patient's mood," he says.

The firm is a finalist in a UK government competition to identify the nation's top mobile tech company, to be judged on 26 February. An insurance company has already expressed an interest in using the app to ensure the workplace stress therapy it pays for is effective. Clinical trials are due to take place later this year.

This article appeared in print under the headline "We know how you really feel"

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Non-American or European Pope is good, poll finds

WASHINGTON: More than half of Catholics in the United States think it would be a good thing for the next pope to come from South America, Asia or Africa, a Pew Research Center poll said Thursday.

Another 20 per cent said it would not matter if Pope Benedict XVI's successor hails from a developing region of the world, while just 14 per cent thought it was a bad idea.

Pew's Forum on Religion and Public Life interviewed 1,504 Americans of all faiths, including 304 Catholics, shortly after the German-born pontiff's resignation announcement was made on February 11.

Fifty-one per cent of Catholic respondents said the next pope should "maintain the traditional positions of the Church."

Of those who thought he should take the Church in new directions, 15 per cent said he should get tougher on sex abuse and nine percent thought he should be more accepting of gays and marriage equality.

Just one percent believed he should be less strict about abortion.

Nearly one in four Americans are Catholics, making the Church the largest single denomination in the country -- and the United States the developed nation with the largest Catholic population.

- AFP/sf

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U.S. attorney: Criticism of Aaron Swartz prosecution is 'unfair'

Carmen Ortiz, U.S. Attorney for Massachusetts

(Credit:
U.S. Department of Justice)

Carmen Ortiz, the embattled U.S. attorney who charged the late activist Aaron Swartz with multiple felonies, has responded to critics by saying complaints about any prosecutorial overzealousness are "inaccurate" and "unfair."

Ortiz, 57, said in a radio interview that a wave of criticism -- which includes a congressional investigation, a court Web site hack, and a petition demanding her removal from office -- is off-base and uninformed.

"I have heard some of the claims in terms of being overzealous, or lack of supervision" of prosecutors in the office, Ortiz, who was appointed by President Obama and has previously denied any wrongdoing, told Boston's WBUR radio in an interview aired yesterday. "And I think they're actually very inaccurate. They're unfair. And they're unwarranted."

WBUR and Massachusetts Lawyers Weekly published a joint report into Ortiz's tenure that found "other prosecutions that parallel the Swartz case" that may "raise similar concerns about her hands-off leadership style, overzealousness, judgment and use of discretion at the grand jury and trial levels." In one case Ortiz's office brought, a federal judge threw out the charges against a defendant after declaring prosecutors' witnesses were so unbelievable that no jury would find them credible. In another, prosecutors accused a medical device company of defrauding surgeons but never talked to the alleged victims, who were prepared to testify for the defense.

"With respect to this notion that prosecutors pretty much run things here and that I don't make independent decisions -- that's completely absurd," Ortiz told WBUR. "We have a hierarchy of supervision. No AUSA in this office is able to bring a case, uh, just on their own." (An AUSA is an assistant U.S. attorney who reports to Ortiz.)

Swartz committed suicide on January 11 in New York. His family and friends have blamed Ortiz for filing 13 felony charges against the late activist for allegedly downloading academic journals he was authorized to access (but not access in such large quantities). "He was killed by the government," Swartz's father, Robert, said at his son's funeral.

Prosecutors accused Swartz of connecting a computer to MIT's network without authorization and retrieving more than 4 million academic journal articles from the JSTOR database. The advocacy group Demand Progress, which Swartz had helped create and which helped defeat the Stop Online Piracy Act a year ago, likened it to "trying to put someone in jail for allegedly checking too many books out of the library."

At the time the charges were filed, Ortiz compared Swartz to a common criminal in a press release. "Stealing is stealing whether you use a computer command or a crowbar," Ortiz said. Last month, less than three months before his criminal trial was set to begin, Ortiz's office formally rejected a deal that would have kept Swartz out of prison. Two days later, Swartz killed himself.

If Swartz had stolen a $100 hard drive with the JSTOR articles, it would have been a misdemeanor offense that would have yielded probation or community service. But the sweeping nature of federal computer crime laws allowed Ortiz and Assistant U.S. Attorney Stephen Heymann, who reportedly wanted a high-profile computer crime conviction, to pursue felony charges -- even though local prosecutors reportedly were content with a stern warning.

The Boston U.S. Attorney's office was looking for "some juicy-looking computer crime cases, and Aaron's case, sadly for Aaron, fit the bill," Elliot Peters, Swartz's attorney at the Keker & Van Nest law firm, told the Huffington Post. Heymann, Peters said, thought the Swartz case "was going to receive press and he was going to be a tough guy and read his name in the newspaper."

Harvard law professor Larry Lessig, who knew Swartz and worked with him, gave a lecture this week titled "Aaron's Laws: Law and Justice in a Digital Age." In it, Lessig called for a reform of U.S. computer crime laws, saying that "obviously first we need to fix" them, but also: "We have to fix dumb copyright. We're here in part because of dumb copyright laws."

In the WBUR interview, Ortiz said she didn't want to discuss Swartz's case in detail because of the congressional investigation. But she did say, in response to criticisms that Swartz was facing the possibility of decades in prison: "I will talk to you about proportion because that is important. We don't take our responsibility lightly. We try to, you know, do the right thing. We strive to do justice."

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Oldest Known Wild Bird Hatches Chick at 62

Wisdom, the oldest known wild bird, has yet another feather in her cap—a new chick.

The Laysan albatross (Phoebastria immutabilis)—62 years old at least—recently hatched a healthy baby in the U.S. Midway Atoll National Wildlife Refuge, her sixth in a row and possibly the 35th of her lifetime, according to the U.S. Geological Survey's (USGS) North American Bird Banding Program. (Related: "51-Year-Old Albatross Breaks N. American Age Record [2003].")

But Wisdom's longevity would be unknown if it weren't for a longtime bird-banding project founded by USGS research wildlife biologist Chandler Robbins.

Now 94, Robbins was the first scientist to band Wisdom in 1956, who at the time was "just another nesting bird," he said. Over the next ten years, Robbins banded tens of thousands of black-footed albatrosses (Phoebastria nigripes) and Laysan albatrosses as part of a project to study the behavior of the large seabirds, which at the time were colliding with U.S. Navy aircraft.

Robbins didn't return to the tiny Pacific island—now part of the U.S. Papahānaumokuākea Marine National Monument—until 2002, when he "recaptured as many birds as I could in hopes that some of them would be the old-timers."

Indeed, Robbins did recapture Wisdom—but he didn't know it until he got back to his office at the Patuxent Wildlife Research Center in Laurel, Maryland, and checked her band number in the database.

"That was real exciting, because we didn't think the chances of finding one that old would be that good," Robbins said Wednesday in an interview from his office at the Patuxent center, where he still works.

Chandler Robbins counts birds in Maryland's Patuxent Research Refuge.

Photograph by David H. Wells, Corbis

Albatrosses No Bird Brains

Bigger birds such as the albatross generally live longer than smaller ones: The oldest bird in the Guinness Book of Animal Records, a Siberian white crane (Leucogeranus leucogeranus), lived an unconfirmed 82 years. Captive parrots are known to live into their 80s. (See National Geographic's bird pictures.)

The Laysan albatross spends most of the year at sea, nesting on the Midway Atoll (map) in the colder months. Birds start nesting around five years of age, which is how scientists knew that Wisdom was at least five years old in 1956.

Because albatrosses defend their nests, banding them doesn't require a net or a trap as in the case of other bird species, Robbins said—but they're far from tame.

"They've got a long, sharp bill and long, sharp claws—they could do a job on you if you're not careful how to handle them," said Robbins, who estimates he's banded a hundred thousand birds.

For instance, "when you're not looking, the black-footed albatross will sneak up from behind and bite you in the seat of the pants."

But Robbins has a fondness for albatrosses, and Wisdom in particular, especially considering the new dangers that these birds face.

Navy planes are no longer a problem—albatross nesting dunes were moved farther from the runway—but the birds can ingest floating bits of plastic that now inundate parts of the Pacific, get hooked in longlines meant for fish, and be poisoned by lead paint that's still on some of Midway Atoll's buildings. (Also see "Birds in 'Big Trouble' Due to Drugs, Fishing, More.")

That Wisdom survived so many years avoiding all those hazards and is still raising young is quite extraordinary, Robbins said.

"Those birds have a tremendous amount of knowledge in their little skulls."

"Simply Incredible"

Wisdom's accomplishments have caught the attention of other scientists, in particular Sylvia Earle, an oceanographer and National Geographic Explorer in Residence, who said by email that Wisdom is a "symbol of hope for the ocean." (National Geographic News is part of the National Geographic Society.)

Earle visited Wisdom at her nest in January 2012, where she "appeared serenely indifferent to our presence," Earle wrote in the fall 2012 issue of the Virginia Quarterly Review.

"I marveled at the perils she had survived during six decades, including the first ten or so years before she found a lifetime mate. She learned to fly and navigate over thousands of miles to secure enough small fish and squid to sustain herself, and every other year or so, find her way back to the tiny island and small patch of grass where a voraciously hungry chick waited for special delivery meals."

Indeed, Wisdom has logged an estimated two to three million miles since 1956—or four to six trips from Earth to the moon and back, according to the USGS. (Related: "Albatross's Effortless Flight Decoded—May Influence Future Planes.")

Bruce Peterjohn, chief of the North American Bird Banding Program, called Wisdom's story "simply incredible."

"If she were human, she would be eligible for Medicare in a couple years—yet she is still regularly raising young and annually circumnavigating the Pacific Ocean," he said in a statement.

Bird's-Eye View

As for Robbins, he said he'd "love to get out to Midway again." But in the meantime, he's busy going through thousands of bird records in an effort to trace their life histories.

There's much more to learn: For instance, no one has ever succeeded in putting a radio transmitter on an albatross to follow it throughout its entire life-span, Robbins noted.

"It would be [an] exciting project for someone to undertake, but I'm 94 years old," he said, chuckling. "It wouldn't do much for me to start a project at my age."

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Las Vegas Shooting Launches Multi-State Manhunt

An argument in the valet area of a Las Vegas hotel led to a deadly drive-by shooting on the occupants of a Maserati on Vegas' glitzy strip, initiating a multi-state manhunt for the black Range Rover from which the shots were fired.

Three people were left dead in the attack, including two who died when their taxi was struck by the careening sports car and exploded into flames.

"What happened is not just tragic, but underscores the level of violence we see sometimes here in Las Vegas as well as across America," Las Vegas Metropolitan Sheriff Doug Gillespie said at a news conference today. "Clearly, the suspects in this shooting have no regard for the lives and safety of others."

The altercation took place in the valet area of the Aria resort and casino. Gillespie said there is currently "no indication" what the squabble was about.

Gillespie said that authorities do not know how many people are in the SUV, but that they are considered armed and dangerous. He warned members of the public to stay away from it.

"You should not take action," he said. "Instead, call your local police department and alert them to the whereabouts of the suspect vehicle."

Authorities in Nevada, Utah, Arizona and California are all on alert for the car.

"These individuals will be found," Gillespie said. "They will be prosecuted to the full extent of the law."

Steve Marcus/Las Vegas Sun/AP Photo

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The Range Rover SUV shot at two people in the Maserati, which caused a multi-car crash. Police have not released the model of the Maserati, but the price of a new Maserati ranges from $123,000 to $142,000.

Police said that they believe a group of men riding in a black Range Rover Sport SUV pulled up alongside the Maserati around 4:20 a.m. today and fired shots into the car, striking the driver and passenger, according to Officer Jose Hernandez of the Las Vegas Metropolitan police department.

The Maserati then swerved through an intersection, hitting at least four other cars. One car that was struck, a taxi with a driver and passenger in it, caught on fire and burst into flames, trapping both occupants, Hernandez said.

The SUV then fled the scene, according to cops.

Gillespie said investigators are in the process of gathering video footage from hotels, casinos and the taxi cabs that were at the intersection.

The driver of the Maserati died from his gunshot wounds at University Medical Center shortly after the shooting, according to Sgt. John Sheahan.

The driver and passenger of the taxi both died in the car fire.

At least three individuals, including the passenger of the Maserati, were injured during the shooting and car crashes and taken to UMC hospital for treatment.

Authorities said the Maserati passenger, identified only as a man, sustained only a minor injury to his arm. He is speaking to and cooperating with police.

They do not yet know whether the cars had local plates or were from out of state.

No bystanders were hit by gunfire, Hernandez said.

"We're currently looking for a black Range Rover Sport, with large black rims and some sort of dealership advertising or advertisement plates," Hernandez said. "This is an armed and dangerous vehicle."

The Las Vegas Convention and Visitors Authority had no immediate comment about the safety of tourists in the wake of the shooting today.

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Higgs may spell doom, unless supersymmetry saves us

Lisa Grossman, physical sciences reporter

(Image: CERN)

Is the Higgs boson a herald of the apocalypse? That's the suggestion behind a theory, developed more than 30 years ago, that is back in the headlines this week. According to physicists, the mass of the Higgs-like particle announced last summer supports the notion that our universe is teetering on the edge of stability, like a pencil balanced on its point.

"It may be that the universe we live in is inherently unstable," Joseph Lykken, of the Fermi National Accelerator Laboratory in Batavia, Illinois, said on Monday at a meeting of the American Association for the Advancement of Science. "At some point, billions of years from now, it's all going to be wiped out."

Physicists have been wringing their hands about this scenario since 1982, when theorists Michael Turner and Frank Wilczek published a paper about it in Nature, NBC News points out. The pair showed that the vacuum of space can be in different energy states, and it will be most stable at its lowest energy. Trouble arises if we're not there yet, and we're inhabiting a temporarily stable state that should ultimately collapse.

"The universe wants to be in a different state, so eventually to realize that, a little bubble of what you might think of as an alternate universe will appear somewhere, and it will spread out and destroy us," Lykken said at AAAS.

Enter the Higgs boson, the particle form of the field that gives mass to several fundamental particles. The Higgs field permeates the vacuum of space, which means the mass of the boson and the stability of the vacuum are closely intertwined. Theory predicted that if the Higgs boson is heavier than about 129 gigaelectronvolts (GeV), the universe should be on safe footing.

But in July 2012 physicists at CERN, near Geneva, Switzerland announced that a particle closely matching the Higgs had been found by experiments in the Large Hadron Collider (LHC). The much celebrated particle has a mass of about 126 GeV - light enough to raise fears of instability.

There is still hope for the universe as we know it. Some theorists pointed out that the relationship between the Higgs mass and the vacuum of space depends on the mass of a particle called the top quark. If the top quark's mass is different than we think it is, stability might reign.

There are also anomalies with the Higgs measurement, like the fact that it decays into photons more often than predicted. That hints we may yet find particles from the theory of supersymmetry, which says each ordinary particle has heavier "superpartners". If the Higgs has such a relative, it might save us from destruction. But some of these predicted particles, particularly the superpartners of the top quark, can push the universe back into instability.

The worries may remain unconfirmed for a while. The LHC is shutting down for a two-year break so engineers can prepare the machine to shoot higher-energy particle beams, which are needed to probe for superpartners.

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Sony bills coming PS4 console as future of gaming

NEW YORK: Sony unveiled a new-generation PlayStation 4 (PS4) system on Wednesday and laid out its vision for the "future of gaming" in a world rich with mobile gadgets and play streamed from the Internet cloud.

At a press event in New York, computer entertainment unit chief Andrew House said PS4 "represents a significant shift from thinking of PlayStation as a box or console to thinking of the PlayStation 4 as a leading place for play."

PS4 was designed to get to know players, ideally to the point of being able to predict which games people will buy and have them pre-loaded and ready to go.

It also allows live streaming of gameplay in real-time, letting friends virtually peer over one another's shoulders and even letting game makers to act as "directors" guiding players along.

Sony has also given a "green light" to building "the most powerful network for gaming in the world", according to David Perry, chief of Gaikai cloud gaming company purchased last year by Sony.

Gaikai specialises in letting people play video games streamed from the Internet "cloud" instead of buying titles on disks popped into consoles or computers.

"By combining PlayStation 4, PlayStation Network and social platforms, our vision is to create the first social network with meaning dedicated to games," Perry said during the event.

A button on the PS4 controller will let players instantly stream in-game action to friends in real time, and even allow someone to transfer control to more capable allies when stuck, according to Perry.

He expressed a vision of letting people access and play video games old or new on the Internet using PS4, smartphones, tablets or PS Vita handheld devices.

"We are exploring opportunity enabled by cloud technology with a long-term vision of making PlayStation technology available on any device," Perry said.

"This would fundamentally change the concept of game longevity, making any game new or old available to get up and running on any device, anywhere."

Sony needs to adapt to changing lifestyles while not alienating video game lovers devoted to its hardware.

Low-cost or free games on smartphones or tablet computers are increasing the pressure on video game companies to deliver experiences worth players' time and money.

With the press event still in progress, Sony had yet to indicate availability or pricing for the PS4. New-generation consoles are typically priced in the $400 to $500 range, and blockbuster game titles hit the market at $60 each.

-AFP/gn

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Curiosity's drill delivers first sample in major milestone

This image from NASA's Curiosity rover shows the first sample of powdered rock extracted by the rover's drill. The image was taken after the sample was transferred from the drill to the rover's scoop. In planned subsequent steps, the sample will be sieved, and portions of it delivered to the Chemistry and Mineralogy instrument and the Sample Analysis at Mars instrument.

(Credit:
NASA/JPL-Caltech/MSSS )

The Curiosity rover's powerful impact drill has successfully collected its first subsurface sample, about a tablespoon of powdered rock that will be fed into the spacecraft's on-board laboratory instruments for detailed chemical analysis, project officials said Wednesday.

The drill is the last major system on the rover to be tested since landing in Gale Crater last August and the successful collection of subsurface material marks a major milestone in Curiosity's quest to find signs of past or present habitability.

"Curiosity's first drill hole at the John Klein site is a historic moment for the MSL (Mars Science Laboratory) mission," said Louise Jandura, chief engineer of Curiosity's sample system. "This is the first time any robot, fixed or mobile, has drilled into a rock to collect a sample on Mars.

"In fact, this is the first time any rover has drilled into a rock to collect a sample anywhere but on Earth. In the five-decade history of the Space Age, this is indeed a rare event."

The drill, mounted on the end of Curiosity's robot arm, was used to bore 2.5 inches into a rock for the first time on February 8. Photographs beamed back to Earth on Wednesday showed a sample of pulverized light gray rock collected from the interior of the target bedrock resting in a scoop on the rover.

The scoop is part of Curiosity's Collection and Handling for In-Situ Martian Rock Analysis, or CHIMRA. Over the next few days, the sample will be vibrated over a sieve to screen out any particles larger than 150 microns across, or six-thousandths of an inch.

A portion of the fine-grained result will be delivered to the Chemistry and Mineralogy, or CheMin, suite of instruments for a detailed chemical analysis. Another set of instruments, known as the Sample Analysis at Mars, or SAM, package is designed to look for signs of organic compounds like those necessary for life as it is known on Earth.

"Seeing the powder from the drill in the scoop allows us to verify for the first time that the drill successfully acquired sample as it was boring down into the rock," said Scott McCloskey, rover planner and drill systems engineer. "We estimate that we collected about a tablespoon of powder, which meets our expectations and is a great result. We're all very happy to get this confirmation and relieved that the drilling was a complete success."

So far, Curiosity is chalking up a near flawless record with no technical problems of any significance.

At the center of this image from NASA's Curiosity rover is the hole in a rock called "John Klein" where the rover conducted its first sample drilling on Mars. The drilling took place on February 8, 2013, or Sol 182, Curiosity's 182nd Martian day of operations. Several preparatory activities with the drill preceded this operation, including a test that produced the shallower hole on the right two days earlier, but the deeper hole resulted from the first use of the drill for rock sample collection.

(Credit:
NASA/JPL-Caltech/MSSS )

But engineers have decided to change the way they operate the rover's sample acquisition system in the wake of problems with welds on a test unit sieve at the Jet Propulsion Laboratory.

The problem showed up only after extensive operation, and troubleshooters concluded the unit could successfully operate for a full year longer than Curiosity's planned two-year mission. A second test unit showed no signs of trouble and the sieve aboard Curiosity is working normally.

But engineers opted to take a conservative approach, deciding to operate Curiosity's sieve hardware only when absolutely necessary.

"Given this kind of reason to be cautious, based on what our test program is telling us that hey, there might be an issue here, it may or may not apply to flight, we're taking the conservative tack," said Daniel Limonadi, lead systems engineer for Curiosity's surface sampling and science system.

"We're reducing the amount of wear and tear we're putting on the hardware. We've shortened our sieving time...to help minimize whatever might be going on and extend its life."

Joel Hurowitz, sampling system scientist for Curiosity, said the science team is eager to finally get the opportunity to examine rock samples that have not been subjected to surface weathering.

"This drilling operation we just completed allows us to get beneath the surface and analyze for the first time rock samples that have not been exposed to the effects of the Martian surface environment and truly understand the chemistry and mineralogy of a Martian rock," he said.

"The science team is just superexcited to find out what CheMin and SAM will have to say about the mineralogy and chemistry of this material and what it means for the geologic history and habitability of Gale Crater."

Jandura said the ability to drill is a major step forward in the Mars exploration program.

"It allows us to go beyond the surface layer of the rock, unlocking a kind of time capsule of evidence about the state of Mars going back 3 or 4 billion years," she said. "Because the drill's on a rover, the rock choices are plentiful."

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NASA's Mars Rover Makes Successful First Drill

For the first time ever, people have drilled into a rock on Mars, collecting the powdered remains from the hole for analysis.

Images sent back from NASA's Mars rover Curiosity on Wednesday confirmed that the precious sample is being held by the rover's scoop, and will soon be delivered to two miniature chemical labs to undergo an unprecedented analysis. (Related: "Mars Rover Curiosity Completes First Full Drill.")

To the delight of the scientists, the rock powder has come up gray and not the ubiquitous red of the dust that covers the planet. The gray rock, they believe, holds a lot of potential to glean information about conditions on an early Mars. (See more Mars pictures.)

"We're drilling into rock that's a time capsule, rocks that are potentially ancient," said sampling-system scientist Joel Hurowitz during a teleconference from NASA's Jet Propulsion Laboratory in California.

A Place to Drill

The site features flat bedrock, often segmented into squares, with soil between the sections and many round gray nodules and white mineral veins.

Hurowitz said that the team did not attempt to drill into the minerals or the gray balls, but the nodules are so common that they likely hit some as they drilled down 2.5 inches (6.3 centimeters).

In keeping with the hypothesis that the area was once under water, Hurowitz said the sample "has the potential of telling us about multiple interactions of water and rock."

The drill, located at the end of a seven-foot (two-meter) arm, requires precision maneuvering in its placement and movement, and so its successful initial use was an exciting and welcome relief. The rover has been on Mars since August, and it took six months to find the right spot for that first drill. (Watch video of the Mars rover Curiosity.)

The flat drilling area is in the lower section of Yellowknife Bay, which Curiosity has been exploring for more than a month. What was previously identified by Curiosity scientists as the dry bed of a once-flowing river or stream appears to fan out into the Yellowknife area.

The bedrock of the site—named after deceased Curiosity deputy project manager John Klein—is believed to be siltstone or mudstone. Scientists said the veins of white minerals are probably calcium sulfate or gypsum, but the grey nodules remain something of a mystery.

Triumph

To the team that designed and operates the drill, the results were a triumph, as great as the much-heralded landing of Curiosity on the red planet. With more than a hundred maneuvers in its repertoire, the drill is unique in its capabilities and complexities. (Watch video of Curiosity's "Seven Minutes of Terror.")

Sample system chief engineer Louise Jandura, who has worked on the drill for eight years, said the Curosity team had made eight different drills before settling on the one now on the rover. The team tested each drill by boring 1,200 holes on 20 types of rock on Earth.

She called the successful drilling "historic" because it gives scientists unprecedented access to material that has not been exposed to the intense weathering and radiation processes that affect the Martian surface.

Mini-laboratories

The gray powder will be routed to the two most sophisticated instruments on Curiosity—the Sample Analysis at Mars (SAM) and Chemistry and Mineralogy (CheMin).

SAM, the largest and most complex instrument onboard, operates with two ovens that can heat the sample up to 1,800°F (982°C), turning the elements and compounds in the rock into gases that can then be identified. SAM can also determine whether any carbon-based organic material is present.

Organics are the chemical building blocks of life on Earth. They are known to regularly land on Mars via meteorites and finer material that rains down on all planets.

But researchers suspect the intense radiation on the Martian surface destroys any organics on the surface. Scientists hope that organics within Martian rocks are protected from that radiation.

CheMin shoots an X-ray beam at its sample and can analyze the mineral content of the rock. Minerals provide a durable record of environmental conditions over the eons, including information about possible ingredients and energy sources for life.

Both SAM and CheMin received samples of sandy soil scooped from the nearby Rocknest outcrop in October. SAM identified organic material, but scientists are still trying to determine whether any of it is Martian or the byproduct of organics inadvertently brought to Mars by the rover. (See "Mars Rover Detects Simple Organic Compounds.")

In the next few days, CheMin will be the first to receive samples of the powdered rock, and then SAM. Given the complexity of the analysis, and the track record seen with other samples, it will likely be weeks before results are announced.

The process of drilling and collecting the results was delayed by several glitches that required study and work-arounds. One involved drill software and the other involved a test-bed problem with a sieve that is part of the process of delivering samples to the instruments.

Lead systems engineer Daniel Limonadi said that while there was no indication the sieve on Mars was malfunctioning, they had become more conservative in its use because of the test bed results. (Related: "A 2020 Rover Return to Mars?")

Author of the National Geographic e-book Mars Landing 2012, Marc Kaufman has been a journalist for more than 35 years, including the past 12 as a science and space writer, foreign correspondent, and editor for the Washington Post. He is also author of First Contact: Scientific Breakthroughs in the Hunt for Life Beyond Earth, published in 2011, and has spoken extensively to crowds across the United States and abroad about astrobiology. He lives outside Washington, D.C., with his wife, Lynn Litterine.

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Armstrong Snubs Offer From Anti-Doping Officials

Lance Armstrong has turned down what may be his last chance at reducing his lifetime sporting ban.

Armstrong has already admitted in an interview with Oprah Winfrey to a career fueled by doping and deceit. But to get a break from the U.S. Anti-Doping Agency, all he had to do was tell his story to those who police sports doping. The deadline was today, and Armstrong now says he won't do it.

"For several reasons, Lance will not participate in USADA's efforts to selectively conduct American prosecutions that only demonize selected individuals while failing to address the 95 percent of the sport over which USADA has no jurisdiction," said Tim Herman, Armstrong's longtime lawyer. "Lance is willing to cooperate fully and has been very clear: He will be the first man through the door, and once inside will answer every question, at an international tribunal formed to comprehensively address pro cycling."

But the "international tribunal" Armstrong is anxious to cooperate with has one major problem: It doesn't exist.

The UCI, cycling's governing body, has talked about forming a "truth and reconciliation" commission, but the World Anti-Doping Agency has resisted, citing serious concerns about the UCI and its leadership.

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U.S. Anti-Doping Agency officials seemed stunned by Armstrong's decision simply to walk away.

"Over the last few weeks, he [Armstrong] has led us to believe that he wanted to come in and assist USADA, but was worried of potential criminal and civil liability if he did so," said Travis Tygart, CEO of the U.S. Anti-Doping Agency. "Today, we learned from the media that Mr. Armstrong is choosing not to come in and be truthful and that he will not take the opportunity to work toward righting his wrongs in sport."

Armstrong's ongoing saga plays out amid a backdrop of serious legal problems.

Sources believe one reason Armstrong wants to testify to an international tribunal, rather than USADA, is because perjury charges don't apply if Armstrong lies to a foreign agency, they told ABC News.

While Armstrong has admitted doping, he has not given up any details, including the people and methods required to pull off one of the greatest scandals in all of sport.

Armstrong is facing several multimillion-dollar lawsuits right now, but his biggest problems may be on the horizon. As ABC News first reported, a high-level source said a criminal investigation is ongoing. And the Department of Justice also reportedly is considering joining a whistleblower lawsuit claiming the U.S. Postal Service was defrauded out of millions of dollars paid to sponsor Armstrong's cycling team.

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