Newly spotted comet to buzz Mars in 2014

Lisa Grossman, physical sciences reporter

A Martian sunset, as seen by NASA's Spirit rover in 2005.
(Image: Mars Exploration Rover Mission, Texas A&M, Cornell, JPL, NASA)

There's a new comet in town, and it is making a beeline for Mars. If projections of its orbit are correct, the icy visitor will buzz the Red Planet in October 2014.

Dubbed C/2013 A1, the comet was discovered on 3 January by prolific comet hunter Robert McNaught at Siding Spring Observatory in New South Wales, Australia. Colleagues at the Catalina Sky Survey in Arizona found images of the comet in their catalogue that date back to 8 December 2012, giving additional information about its movements.

These observations allowed astronomers to trace the comet's likely path around the sun. The calculated trajectory has C/2013 A1 crossing Mars' orbit on 19 October 2014, according to Australian blogger Ian Musgrave.

That doesn't necessarily mean a collision will occur. The best estimates right now have the comet passing a safe distance of 900,000 kilometres from the Martian surface. Asteroid 2012 DA14 got much closer to Earth last week, skimming by at a distance of 34,400 kilometres. But with so little data in hand, the calculations are not precise. It's possible the comet will miss Mars by as much as 36 million kilometres - or it could smack right into the planet. "An impact can't be ruled out at this stage," Musgrave wrote.

From Earth, we should be able to see the comet and Mars sitting side by side through small telescopes. And from Mars, the comet could be as spectacular as the expected "supercomet" ISON, which will come into view this year and could outshine the full moon.

Assuming the comet's orbit brings it close enough - but not too close - to Mars, the object should be visible either by rovers on the surface or the armada of Mars-orbiting satellites, which have a history of snapping spectacular shots of the Red Planet and its neighborhood.

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Batman to lose son Robin

NEW YORK: Batman may be able to save the world, but he'll lose his sidekick Robin -- who in his current incarnation as his son -- in the upcoming Batman Incorporated comic book series.

DC Comics said the caped crusader's acrobatic young assistant, Batman alter ego Bruce Wayne's son Damian, will die in Wednesday's issue number eight.

"This master theme of damaged and ruined families was nowhere more in evidence than in the creation of Damian, the first 'Son of Batman' to be acknowledged in the canon," series writer Grant Morrison said in a statement.

"In many ways this has been Damian's story as much as it has been the story of Bruce Wayne and it's a story that had its end planned a long time ago -- for what son could ever hope to replace a father like Batman, who never dies?"

The good news for those who might miss Robin is that this is the comics universe and characters who are killed can easily return. Even a previous incarnation of Robin was killed and resurrected before.

"You can never say never in a comic book," Morrison told the New York Post. "Batman will ultimately always have a partner."

-AFP/gn

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Yelp: We compete with print -- not Google or Facebook

Google, who? Facebook, huh? Yea, that's right. The Internet behemoths don't pose any threat to business reviews site Yelp and its still-blossoming local advertising business. Well, that's Yelp's attitude anyhow.

"Today, we're really competing with print, radio, and television," Geoff Donaker, Yelp's chief operating officer, said Tuesday when speaking at the Morgan Stanley Technology, Media, and Telecom conference.

But what about Internet businesses like Google and Facebook? Donaker is sure the pair will compete with Yelp in the local advertising arena eventually -- emphasis on eventually. Yelp will let that battle "play out in a decade or so," he said.

Donaker's stance hinges around this point: A tiny fraction of the 50 million local businesses in the Western world are spending on online advertising. They pay to advertise, he said, but primarily through more traditional mediums such as the Yellow Pages and ValPak.

Yelp counts close to 1 million business accounts, and 40,000 of them purchase ads to get their venues featured in front of consumers searching for dentists, doctors, plumbers, and so forth. Chief Financial Officer Rob Krolik said, however, that Yelp is uniquely positioned to attract tens of millions of local merchant customers. Currently, the conversations the company has with would-be advertising business owners are not about Google at all, he said, but instead about how much they're spending on ValPak coupons.

The we-don't-fear-Google assertions are a bit odd considering Chief Executive Jeremy Stoppleman's well-documented dislike for the search giant, a company he has described as evil. Nor do they match up with Wall Street's beliefs. Investors punished Yelp as soon as Facebook announced Graph Search, a social-network search engine that, in helping people find nearby businesses on Facebook, could eat into Yelp's chunk of the local advertising pie.

But ask Yelp about Graph Search and you'll likely hear a giant yawn, and a small dig.

It's no big surprise that Facebook has gone this route, Donaker said, indicating that Yelp is taking a wait-and-see approach to Facebook's search product. He couldn't help but add that, as it stands, Yelp doesn't receive any "material level of traffic" from the social network.

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A History of Balloon Crashes

A hot-air balloon exploded in Egypt yesterday as it carried 19 people over ancient ruins near Luxor. The cause is believed to be a torn gas hose. In Egypt as in many other countries, balloon rides are a popular way to sightsee. (Read about unmanned flight in National Geographic magazine.)

The sport of hot-air ballooning dates to 1783, when a French balloon took to the skies with a sheep, a rooster, and a duck. Apparently, they landed safely. But throughout the history of the sport, there have been tragedies like the one in Egypt. (See pictures of personal-flight technology.)

1785: Pioneering balloonist Jean-Francois Pilatre de Rozier and pilot Pierre Romain died when their balloon caught fire, possibly from a stray spark, and crashed during an attempt to cross the English Channel. They were the first to die in a balloon crash.

1923: Five balloonists participating in the Gordon Bennett Cup, a multi-day race that dates to 1906, were killed when lightning struck their balloons.

1924: Meteorologist C. LeRoy Meisinger and U.S. Army balloonist James T. Neely died after a lightning strike. They had set off from Scott Field in Illinois during a storm to study air pressure. Popular Mechanics dubbed them "martyrs of science."

1995: Tragedy strikes the Gordon Bennett Cup again. Belarusian forces shot down one of three balloons that drifted into their airspace from Poland. The two Americans on board died. The other balloonists were detained and fined for entering Belarus without a visa. (Read about modern explorers who take to the skies.)

1989: Two hot air balloons collided during a sightseeing trip near Alice Springs, Australia. One balloon crashed to the ground killing all 13 people on board. The pilot of the other balloon was sentenced to a two-year prison term for "committing a dangerous act." Until today, this was considered the most deadly balloon accident.

2012: A balloon hit a power line and caught fire in New Zealand, killing all 11 on board. Investigators later determined that the pilot was not licensed to fly and had not taken  proper safety measures during the crash, like triggering the balloon's parachute and deflation system.

2012: A sightseeing balloon carrying 32 people crashed and caught fire during a thunderstorm in the Ljubljana Marshes in Slovenia. Six died; many other passengers were injured.

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Arias Liked Some Kinky Sex, She Admits

Though accused murderer Jodi Arias said she sometimes felt "like a prostitute" at the hands of her ex-boyfriend, Travis Alexander, she admitted today that she often enjoyed their sex life and even suggested sex acts they could try.

Prosecutor Juan Martinez, after a day of aggressive questioning and bickering with Arias, asked her about her own suggestions for her sex life with Alexander, including a phone conversation in which she suggested using sexual lubricant.

Arias, 32, is accused of killing Alexander, but claims it was in self-defense.
Timeline of the Jodi Arias Trial

"You introduced KY Jelly into the relationship to make it more sexually enjoyable, right? When we're talking about the level of experimentation, it looks like both of you were experimenting together sexually. So when we hear things like, 'I felt like a prostitute,' that's not exactly true, is it?" Martinez said.

"It was often mutual," Arias said. "I didn't feel like a prostitute during, just after."

Jodi Arias Testimony: Prosecution's Cross-Examination Watch Video

Jodi Arias Remains Calm Under Cross-Examination Watch Video

Martinez showed the jury a text message Arias sent offering to perform oral sex on Alexander, comparing it to a statement she made on direct testimony saying that she once felt like a prostitute when Alexander tossed a piece of chocolate at her and walked away without a word after she performed oral sex.

"How is it you can say you 'felt like a prostitute' when you're moving the relationship ahead like this?" Martinez asked. "The act itself is the same thing, and here you're requesting it. The geography is different, but that aside, isn't it the same act? And you're requesting it?"

"When he (ejaculated) and left afterward I felt like a prostitute. When we mutually went through things together I didn't," she said.

Arias also admitted that she sent Alexander a topless photo of herself after he sent her photos of his penis, and that she only did it after she had her breasts enhanced surgically.

Catching Up on the Trial? Check Out ABC News' Jodi Arias Trial Coverage

The testimony came as Martinez continued his efforts to discredit Arias' testimony on the stand, including her statements that she often succumbed to Alexander's sexual fantasies so she wouldn't hurt his feelings. Martinez has focused on portraying Arias as a liar for much of his direct examination.

Arias is charged with murder for killing her ex-boyfriend Travis Alexander at his home in Mesa, Ariz., in June 2008. She claims she killed him in self defense and that he had been increasingly violent and sexually demanding in the months before the confrontation. She also claimed he was interested in young boys.

The prosecution claims she killed him in a jealous rage. She could face the death penalty if convicted of first degree murder.

Jodi Arias Trial See Tempers Flare

Earlier in the day,tempers flared between Arias and prosecutor Martinez as the prosecutor tried to detail Arias' history of spying on her boyfriends, but Arias complained that his aggressive style of questioning made her "brain scramble."

Arias and Martinez, who have sparred throughout two prior days of cross-examination, spent more than 10 minutes bickering over Martinez's word choices and his apparent "anger."

The morning's testimony, and Martinez's points about Arias' alleged spying, were largely interrupted by the spats.

"Are you having trouble understanding me?" Martinez yelled.

"Yes because sometimes cause you go in circles," Arias answered.

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Today on New Scientist: 25 February 2013

First fruits of a groundbreaking art-science tie-up

A pioneering collaboration between two of London's most prestigious cultural institutions shows that sci-art has come of age

The great illusion of the self

Your mind's greatest trick is convincing you of your own reality. Discover the elaborate illusions involved and what they mean in our special feature

Stunning seeds: a biological meteor wreathed in flames

Some seeds have a look that evokes all-consuming fire, says an artist who captures their portraits with a flatbed scanner

Armband adds a twitch to gesture control

The Myo band turns electrical activity in the muscles of a user's forearm into gestures for controlling computers and other devices

Treat malware as biology to know it better

Treating computer viruses as a biological puzzle could help computer scientists get a better handle on the wide world of malware

Take my taxi to the moon

Susmita Mohanty, the founder of India's first private space company, Earth2Orbit, wants India to claim bigger piece of the space-launch pie

How electrodes in the brain block obsessive behaviour

Why deep brain stimulation can help people with OCD was a mystery, but now it seems the treatment fixes brain signalling well beyond the stimulated area

Ancient continent hides beneath Indian Ocean

The sands on Mauritius's beaches are older than the island itself, suggesting a hidden continent is the source

New blood test finds elusive fetal gene problem

Take parents' DNA and make a computer model of their fetus's genome - comparison with the real thing will show up problems that other tests miss

Amazon to open market in second-hand MP3s and e-books

A new market for second-hand digital downloads could let us hold virtual yard sales of our ever-growing piles of intangible possessions

People in a vegetative state may feel pain

Scans have revealed activity in areas of the brain responsible for the emotional aspects of pain in people thought to have no subjective awareness

Sewage solutions: Six alternative toilet technologies

Two-and-a-half billion people don't have access to sanitary toilets, but standard designs aren't an option without a sewer network. See some alternatives here

Rusty rocks reveal ancient origin of photosynthesis

Iron oxide in the world's oldest sedimentary rocks suggest photosynthesis evolved 370 million years earlier than we thought, not long after life began

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NY Times to rebrand Herald Tribune in its own image

NEW YORK: For a decade the International Herald Tribune has been the global edition of the New York Times in all but name. On Monday, the parent company made it official.

In a statement, the New York Times Company said the 125-year-old offshoot of the defunct New York Herald Tribune will be rechristened sometime this fall as the International New York Times.

"The digital revolution has turned the New York Times from being a great American newspaper to becoming one of the world's best-known news providers," said New York Times Company chief executive Mark Thompson.

"We want to exploit that opportunity," said the former BBC boss, adding that a new website for international readers is also in the pipeline.

The International Herald Tribune (IHT) was co-owned by the New York Times and the Washington Post from 1967 until 2003, when the Times became its sole proprietor and restyled it as "the global edition of the New York Times."

It almost exclusively showcased New York Times content in a bid to appeal to high-earning anglophone globe-trotters in competition with global editions of the Wall Street Journal and Britain's Financial Times.

Sold in more than 160 countries and territories, it has a daily circulation of more than 226,000, an IHT spokeswoman told AFP by email.

Prior to 1967 the IHT was known as the Paris edition of the New York Herald Tribune -- immortalized in Jean-Luc Godard's New Wave classic "Breathless" by Jean Seberg in a tight yellow T-shirt hawking copies on the Champs-Elysees.

The New York Times published an international edition under its own name from 1946 until it bought into "the Trib" and helped oversee its development as a global media brand through the use of satellite printing plants.

"I have to say I'm sorry to see the Herald Tribune go," said Charles Robertson, author of "The International Herald Tribune: The First 100 Years" and an IHT reader since his childhood in Switzerland.

"I suppose, once the Times pushed out the Washington Post, it was probably inevitable," Robertson, a professor emeritus at Smith College in Northampton, Massachusetts, told AFP.

News of the rebranding came less than three weeks after the New York Times Company posted a 2012 group profit of $133 million, compared with a loss of $39.7 million in 2011.

It gave no breakdown of profit or loss figures for its newspapers, but earlier this month it said it was putting the Boston Globe and other New England assets up for sale to focus on its eponymous core product.

"The New York Times is a very strong brand in the United States (and) there are enough people globally who still read it," said Joscelyn MacKay, senior securities analyst at Morningstar in Chicago.

"The content itself will have to become a bit more global ... but I think it is a definite feasible target for them," she told AFP.

"Whether or not it's going to move the needle over the long run remains to be seen, given the challenges that print media faces."

The International New York Times "will be edited from Hong Kong, Paris, London and New York," according to Monday's statement, and new investments will be made "in print, web and mobile platforms."

IHT spokeswoman Vicky Taylor, in an email from London, said there are "currently no plans to cut staff numbers or offer buyouts."

Half of those on the IHT payroll are in France, where labor costs are higher than the United States or Britain.

"In many ways it will be business as usual at the IHT because as an organization we've already taken significant steps to align with the New York Times to the benefit of readers and advertisers," Taylor said.

"Making the full transition to a multi-platform International New York Times is the next logical step."

-AFP/ac

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OMG! Google's Andy Rubin worries Samsung may become a threat

Visitors look at new Samsung devices during the first day of the Mobile World Congress 2013 in Barcelona, Spain.

(Credit:
Getty Images)

Andy Rubin, who heads up Google's enormously successful
Android business, can read a company's business strategy as well as anyone out there. So it's hardly a thunderbolt when we hear that Rubin frets about the day when Samung becomes so dominant that it becomes a threat. In a Wall Street Journal post coinciding with the Mobile World Congress show in Barcelona this week, an unnamed source dishes about a Google event last fall where Rubin was said to allude to the potential for trouble with Samsung sometime in the future. That's why Google acquired Motorola Mobility "as a kind of insurance policy, or "hedge," against a company like Samsung gaining too big a footprint in the Android community, Rubin reportedly said.

Sounds about right. I suppose the bigger shock would be if Rubin had been oblivious to any of this. Samsung's emergence the last few years ranks as one of the more remarkable stories in the technology business. It wasn't so long ago that this was little more than a big OEM supplier. Now it's the world's biggest maker of Android-based hardware. Give the Googlers credit for knowing their history-- and maybe that will help them prevent repeating it. The names change but this is all part of a familiar business storyline. Eric Schmidt, who battled against Microsoft when he worked for Sun Microsystems and Novell, watched how the once-close relationship between Microsoft and its biggest customer IBM, frayed and turned contentious during the years-long rivalry between Windows and OS/2. There's nothing so far to suggest that Google and Samsung are fated to head down a similar road but as the WSJ's nicely-written narrative makes clear, this is getting complicated.

For now -- and probably the near-future -- Google and Android remain partners. Samsung accounted for about 200 million more Android smartphones than the nearest Android-device manufacturer and that gives Samsung leverage. With that heft also comes the power to demand better pricing, earlier access to technology other terms and conditions. For now, Google may be able to live with all that, especially given that both companies have a common rival in the form of Apple.

However, this relationship will require a lot of TLC to manage, especially if the current trends accelerate (and based so far on what's coming out of Barcelona, there's nothing to suggest that any would-be challengers are close to offering the sort of show-stoppers which might slow Samsung's momentum.) For a company like Google, which has been able to call the shots for most of its (relatively) young history, I suppose it's a good problem to have. The flip side of success. But it also may be a harbinger suggesting that the topdog-underdog relationship between Google and Samsung is fated to get redefined.

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Sharks Warn Off Predators By Wielding Light Sabers

Diminutive deep-sea sharks illuminate spines on their backs like light sabers to warn potential predators that they could get a sharp mouthful, a new study suggests.

Paradoxically, the sharks seem to produce light both to hide and to be conspicuous—a first in the world of glowing sharks. (See photos of other sea creatures that glow.)

"Three years ago we showed that velvet belly lanternsharks [(Etmopterus spinax)] are using counter-illumination," said lead study author Julien Claes, a biologist from Belgium's Catholic University of Louvain, by email.

In counter-illumination, the lanternsharks, like many deep-sea animals, light up their undersides in order to disguise their silhouette when seen from below. Brighter bellies blend in with the light filtering down from the surface. (Related: "Glowing Pygmy Shark Lights Up to Fade Away.")

Fishing the 2-foot-long (60-centimeter-long) lanternsharks up from Norwegian fjords and placing them in darkened aquarium tanks, the researchers noticed that not only do the sharks' bellies glow, but they also had glowing regions on their backs.

The sharks have two rows of light-emitting cells, called photophores, on either side of a fearsome spine on the front edges of their two dorsal fins.

Study co-author Jérôme Mallefet explained how handling the sharks and encountering their aggressive behavior hinted at the role these radiant spines play.

"Sometimes they flip around and try to hit you with their spines," said Mallefet, also from Belgium's Catholic University of Louvain. "So we thought maybe they are showing their weapon in the dark depths."

To investigate this idea, the authors analyzed the structure of the lanternshark spines and found that they were more translucent than other shark spines.

This allowed the spines to transmit around 10 percent of the light from the glowing photophores, the study said.

For Predators' Eyes Only

Based on the eyesight of various deep-sea animals, the researchers estimated that the sharks' glowing spines were visible from several meters away to predators that include harbor seals (Phoca vitulina), harbor porpoises (Phocoena phocoena), and blackmouth catsharks (Galeus melastomus).

"The spine-associated bioluminescence has all the characteristics to play the right role as a warning sign," said Mallefet.

"It's a magnificent way to say 'hello, here I am, but beware I have spines,'" he added.

But these luminous warning signals wouldn't impede the sharks' pursuit of their favorite prey, Mueller's bristle-mouth fish (Maurolicus muelleri), the study suggested. These fish have poorer vision than the sharks' predators and may only spot the sharks' dorsal illuminations at much closer range.

For now, it remains a mystery how the sharks create and control the lights on their backs. The glowing dorsal fins could respond to the same hormones that control the belly lights, suggested Mallefet, but other factors may also be involved.

"MacGyver" of Bioluminescence

Several other species use bioluminescence as a warning signal, including marine snails (Hinea brasiliana), glowworms (Lampyris noctiluca) and millipedes (Motyxia spp.).

Edith Widder, a marinebiologist from the Ocean Research and Conservation Association who was not involved in the current study, previously discovered a jellyfish whose bioluminescence rubs off on attackers that get too close.

"It's like paint packages in money bags at banks," she explained.

"Any animal that was foolish enough to go after it," she added "gets smeared all over with glowing particles that make it easy prey for its predators."

Widder also points out that glowing deep-sea animals often put their abilities to diverse uses. (Watch: "Why Deep-Sea Creatures Glow.")

"There are many examples of animals using bioluminescence for a whole range of different functions," she said.

Mallefet agrees, joking that these sharks are the "MacGyver of bioluminescence."

"Just give light to this shark species and it will use it in any possible way."

And while Widder doesn't discount the warning signal theory, "another possibility would be that it could be to attract a mate."

Lead author Julien Claes added by email, "I also discovered during my PhD thesis that velvet belly lanternsharks have glowing organs on their sexual parts."

And that, he admits, "makes it very easy, even for a human, to distinguish male and female of this species in the dark!"

The glowing shark study appeared online in the February 21 edition of Scientific Reports.

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Arias Had No Remorse: Prosecutor

Accused murderer Jodi Arias was confronted today with a barrage of lies she told after she killed her ex-boyfriend Travis Alexander, but she twice defiantly declared that she was innocent of first degree murder.

"It's the truth. I'm innocent of that charge," Arias said to prosecutor Juan Martinez, referring to the criminal charge that could carry the threat of the death sentence if she is found guilty.

Arias admitted on the stand that she lied for months and years after killing her ex-boyfriend, telling investigators and friends that she had nothing to do with Alexander's grisly death, in which he was stabbed 27 times, his throat was slashed, and he was shot in the head.

Eventually, Arias confessed to the killing, but claims it was in self-defense.

Today, prosecutors hammered Arias about her lying, getting her to admit to lies she told and playing video of her police interrogation and a TV interview in which she told stories that she has since conceded were not true.

See the Evidence in the Jodi Arias Murder Trial

In an interview with NBC's "48 Hours," Arias said she smiled for her mug shot partly because she knew she was innocent.

"You truly believe that you didn't do anything wrong here?" the prosecutor asked incredulously.

Jodi Arias Testimony: Prosecution's Cross-Examination Watch Video

Jodi Arias Remains Calm Under Cross-Examination Watch Video

Jodi Arias Doesn't Remember Stabbing Ex-Boyfriend Watch Video

"I believed that I knew that I was not guilty of first-degree murder and I did plan to be dead," she replied, a reference to her claim that she planned to commit suicide.

Catching Up on the Trial? Check Out ABC News' Jodi Arias Trial Coverage

During a day of contentious questions and answers between Martinez and Arias, the prosecutor used Arias' own diary entries and text messages to show contradictions of her claims that Alexander was abusive toward her, that he hit her and tried to choke her.

Arias said that in early 2008, Alexander hit her in the neck while they were riding in his car. Martinez showed a diary entry describing the day they rode in the car, and there was no mention of physical violence.

"This entry does not corroborate what you told us happened in the car," he said. "With regard to the (choking incident) you didn't call police. You didn't tell anyone about it. There is no corroboration anywhere in your journal. All we have is your word. Are there photos? Any other writings? Is there a police report? Is there a medical report?"

Arias said there was no evidence that the alleged abuse happened, except for her testimony in court.

"There's no evidence because it didn't happen, did it ma'am?" Martinez yelled.

Arias said that she had told one person about the abuse she claims she suffered at the hands of Alexander, and that it was another ex-boyfriend, Matthew McCartney. But when pressed for details about the conversation in which she told him, Arias became confused and changed her answers.

"I saw (Matt) a few days later, and he called me out on the bruises," Arias testified.

"Where?"

"Over the phone, just days after I think," she said.

"Isn't it true he wouldn't have been able to see your injuries because you were talking over the telephone?"

"No, I was in Yreka (California) by then. I stopped to see Matt after I left Arizona. Let's see, I believe it was two or three days after. I'm not saying there was no telephone call, (but) it was at his house. I went and saw Matt, and some make-up wore off, and he confronted me on (the bruises)."

Martinez said that McCartney has denied the conversation ever took place.

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