We need a piece of Mars to continue search for life

THERE'S no need to cry over spilt chemicals. Thanks to an accident inside one of its instruments, NASA's Curiosity rover has detected the presence of a substance called perchlorate in Martian soil (see "Curiosity's spills add thrills to the Mars life hunt").

Not exactly earth-shattering, you might think. But it adds a new twist to the most controversial chapter in Martian history: did the Viking landers detect life?

This is a question that has divided the Viking missions' researchers for almost three decades. One group has resolutely stuck to its guns that the landers detected signs of life. Equally adamant is a second group who say they absolutely did not – a view that has always been the official version of events.

The unexpected discovery of perchlorate supplies a legitimate reason to reopen the debate. Perchlorate is an oxidising agent that destroys organic molecules. Its presence could finally explain the disputed results.

The episode highlights another important issue. Curiosity is a sophisticated machine, but there is only so much soil chemistry we can do from millions of kilometres away. A sample return mission must be a priority.

This article appeared in print under the headline "We need a piece of Mars"

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.

If you are having a technical problem posting a comment, please contact technical support.

Read More..

Japan robot suit gets global safety certificate

TOKYO: A robot suit that can help the elderly or disabled get around was given its global safety certificate in Japan on Wednesday, paving the way for its worldwide rollout.

The Hybrid Assistive Limb, or HAL, is a power-assisted pair of legs developed by Japanese robot maker Cyberdyne, which has also developed similar robot arms.

A quality assurance body issued the certificate based on a draft version of an international safety standard for personal robots that is expected to be approved later this year, the ministry for the economy, trade and industry said.

The metal-and-plastic exoskeleton has become the first nursing-care robot certified under the draft standard, a ministry official said.

Battery-powered HAL, which detects muscle impulses to anticipate and support the user's body movements, is designed to help the elderly with mobility or help hospital or nursing carers to lift patients.

Cyberdyne, based in Tsukuba, northeast of Tokyo, has so far leased some 330 suits to 150 hospitals, welfare and other facilities in Japan since 2010, at 178,000 yen (US$1,950) per suit per year.

"It is very significant that Japan has obtained this certification before others in the world," said Yoshiyuki Sankai, the head of Cyberdyne.

The company is unrelated to the firm of the same name responsible for the cyborg assassin played by Arnold Schwarzenegger in the 1984 film "The Terminator".

"This is a first step forward for Japan, the great robot nation, to send our message to the world about robots of the future," said Sankai, who is also a professor at Tsukuba University.

A different version of HAL -- coincidentally the name of the evil supercomputer in Stanley Kubrick's "2001: A Space Odyssey" -- has been developed for workers who need to wear heavy radiation protection as part of the clean-up at the crippled Fukushima nuclear plant.

Industrial robots have long been used in Japan, and robo-suits are gradually making inroads into hospitals and retirement homes.

But critics say the government has been slow in creating a safety framework for such robots in a country whose rapidly-ageing population is expected to enjoy ever longer lives.

-AFP/fl

Read More..

Ellison buys Hawaiian airline to go with his Hawaiian island

Oracle's Larry Ellison has bought a Hawaiian airline that flies to his Hawaiian airline.

(Credit:
James Martin/CNET)

Oracle CEO Larry Ellison, who last year purchased his own Hawaiian island, bought a small airline that services the island chain.

Island Air announced the acquisition in a press release today that noted there would be no staff or operational changes as a result of its sale to Ellison. Financial terms of the transaction were not revealed.

"We are excited Mr. Ellison has acquired Island Air. He has the vision and resources to literally take Island Air to new heights," Island Air President Les Murashige said in a statement published by the Associated Press. The airline announced last month that it had reached a preliminary sale agreement but did not reveal the buyer until today.

The airline employs 245 people and flies 244 weekly flights between Oahu, Maui, the Big Island, Kauai, Molokai, and Lanai.

Ellison, whose estimated $41 billion net worth makes him the No. 3 richest American, purchased 98 percent of the island of Lanai last June for a rumored $500 million. Ellison told CNBC that he hoped to turn the 141-square-mile island "into a model for sustainable enterprise" that would export organic producer to Asia.

Read More..

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.

Read More..

Inside Organized Retail Crime Raids

We used to call it shoplifting, but these days the foot soldiers of retail crime rings are known as boosters. Police even have an acronym for these operations: ORC, which stands for Organized Retail Crime.

"It's just like a Fortune 500 company," said Sergeant Eric Lee of the Gardena Police Department in Gardena, Calif. "All of this is just organized."

Watch the full story on "Nightline" TONIGHT at 12:35 a.m. ET

Police say big retail stores, from Walgreens to J.C. Penny, are getting hit by highly sophisticated shoplifting networks that steal and resell everything from underwear to razors to milk. According to the National Retail Federation, theft can amount to annual losses as high as a $37 billion for retail businesses.

"Every store in every city has to go through this," Lee said. "They wait until no one's paying attention and they walk out."

Tide detergent is currently a hot target because it is compact, expensive and easy to sell on the streets for profit, police said. The Street name: "liquid gold."

"Sometimes we get rings that just do alcohol," Lee said. "And then we get some that do just meat and seafood."

Investigators say boosters move the loot for cents on the dollar to fencing operations -- the black market resellers of the stolen goods -- which sell the stolen merchandise in plain sight in stores. Boosters, fencers, Mr. Bigs, all of those involved in these shoplifting operations can potentially make millions a year from boosting and re-selling stolen goods.

Craigslist Crackdown: Cops Go After Thieves Watch Video

And Mike Swett is on the case. A former Riverside County sheriff's deputy in Los Angeles, Swett was badly injured in a car wreck and now works as a full-time private investigator on the ORC beat who has worked with Target, Marshalls, T.J. Maxx. Stores hire him to do his own undercover police work, catching thieves before involving local law enforcement.

"Kind of like working a narcotics case, it's like you've got low-level, mid-level and then top dog," Swett said. "We like to go after the top dog and the only way to get to the top dog is mid-level first."

At his command center -- his apartment -- Swett showed off the boxes upon boxes of tapes and photographs he has collected, the fruits of countless silent stake-out hours.

Swett said he has been casing two joints in L.A. for months, both alleged to be mid-level fencing operations. "Nightline" was invited to ride along with him when he sent undercover agents in for a final reconnaissance mission.

At some stores and shopping malls, clerks do little to stop shoplifters and often let them run, which has contributed to the growing fencing operations.

"[The stores] don't want their employees to get injured," Swett said. "So oftentimes they will call the police, but by the time we get there they are already in their car and they are gone."

This leaves professional investigators like Swett to put the pieces together and bust open the gangs to lead over-stretched police departments to the prey.

When raid day arrived, a motorcade of squad cars departed from the Gardena, Calif., police department and pulled up to one fencing operation. Swett said the merchandise being sold was boosted goods.

"There is Victoria's Secret, expensive Victoria's Secret, the gift sets," he said, pointing down a line of tables. "J.C. Penny, Miramax, its real stuff not counterfeit."

He spotted a bottle of Katy Perry brand perfume, which usually retails for around $90 but one seller had it priced at $59.

Read More..

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

Read More..

KFC cuts suppliers after China chicken scare

SHANGHAI: Fast food giant KFC has cut more than 1,000 farms from its supplier network in China to ensure food safety after a scandal over tainted chicken hurt sales in the key market last year.

The issue came to light when China's commercial hub of Shanghai and the northern province of Shanxi said in December that they were investigating KFC suppliers over claims of high levels of antibiotics in chicken.

The food scare caused a six percent fall in the China sales of KFC's parent Yum! Brands in the fourth quarter last year, deeper than its previous estimate of a four percent decline.

KFC will stop using chicken farms that have potential risk, improve the screening process of suppliers and step up self-inspections to address food safety concerns, the company said in a statement late Monday.

"It will always be our top priority to provide customers with the safest chicken with the best quality," Yum China's chairman and chief executive, Sam Su, said in the statement.

"We have seen some safety problems from the incident... and we aim to address the issue within the shortest time."

KFC also pledged to enhance communication with the government and the public, after the Chinese arm of Yum admitted last month that it failed to inform authorities about tests showing high levels of antibiotics in chicken.

Yum was aware of the issue through testing by a third-party in 2010 and 2011 but did not report to the authorities, the Shanghai government said in December.

China has seen several food safety incidents in recent years, including one of the biggest in 2008, when the industrial chemical melamine was found in dairy products which killed at least six babies and made 300,000 ill.

-AFP/sb

Read More..

Facebook pages pop-up exploiting Newtown victims

One of the many Facebook tribute pages created to honor the victims of the Newtown tragedy.

(Credit:
Screenshot by Dara Kerr/CNET)

Government officials and family members of victims from the Sandy Hook Elementary School shooting have asked Facebook to delete several offensive posts or tribute pages related to the massacre, according to the Associated Press.

Authorities have said that many of the Facebook pages are being used to berate survivors and victims' families, while others are fraudulently asking for funeral fund donations.

"Certainly there have been many, too many, of these pages that are intimidating or harassing or exploitive," U.S. Sen. Richard Blumenthal told the Associated Press.

Facebook has responded saying that it will work to remove the offending posts and pages but that some of the tribute pages help people share their sorrow.

Jodi Seth, a spokesperson for the social network, told the Associated Press that Facebook wants to respond quickly "while also recognizing that people across the country want to express grief for a terrible national tragedy."

In December, an armed man stormed the Connecticut elementary school and killed 26 people, including 20 children. Many of the victims have been memorialized and several of the survivors have been lauded on social networks. According to the Associated Press, more than 100 Facebook pages have been created and dedicated to Victoria Soto, one of the teachers killed in the shooting.

The insulting posts include conspiracy theorists who allege that the shooting was staged and all victims were actors. According to the Associated Press, a Facebook tribute page for survivor Kaitlin Roig -- the teacher who saved her students by barricading them in a bathroom -- has a post that reads, "Congratulations Kaitlin or whatever your name is.. Now you're famous and got to meet the 'President.' You ought to be ashamed of yourself."

Lawmakers have asked Facebook to remove the pages that are not authorized by the victims' families and to also make sure new fraudulent pages aren't created. Under Facebook's terms of use, it is prohibited for people to open accounts for anyone but themselves.

"We will continue to be vigilant," Seth told the Associated Press.

CNET contacted Facebook for comment. We'll update the story when we get more information.

Read More..

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.

Read More..

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 active is India's space programme?
The Indian Space Research Organization (ISRO), which was founded in 1969, launches rockets, builds and uses satellites extensively for earthly applications and has recently started planetary exploration. It tested its first astronaut capsule for atmospheric re-entry in 2007, and is planning to build a residential astronaut training facility. ISRO is also planning a lunar lander mission for 2014 and will launch a mission to Mars this year.

How does your company, Earth2Orbit, fit in with this programme?
We want to commercialise India's space capabilities, in particular the Polar Satellite Launch Vehicle. It is one of the world's most reliable in its class. I want to make it the rocket of choice for international satellite-makers looking to get to low Earth or sun-synchronous orbits. India could build and launch up to six each year, but currently launches only two. We need to step up to full throttle. The same goes for satellites and ground equipment. Over the next decade or two, I think India should be aiming for at least a quarter of the multibillion-dollar global space market, if not more.

What do you think of the way spacecraft for carrying humans are currently designed?
The way the world aerospace industry is set up, it is closely linked to the defence sector – they share the technology, the tooling and the cumbersome contractual processes. Unlike commercial automobile or consumer-product companies, where the end user is the primary design driver, aerospace companies tend to please government customers. As a result, we often end up with over-engineered, under-designed crew craft with an exorbitant price tag.

How can we improve on these designs?
I want us to push the boundaries of technology and design and build intelligent spaceships – spaceships that think. Imagine if an international consortium of companies such as Apple, Samsung, Pininfarina, Space X and MIT Media Lab got together to design and build a spaceship! What would it look like? Could it think? Could it self-repair or self-clean? Would it challenge the crew?

The private sector is changing how we get into space. How has the X Prize contributed?
It created a tectonic shift in mindsets and showed how we can accelerate innovation in space exploration without having to spend taxpayer money. The first X Prize led to the first privately funded and designed spaceplane built by Burt Rutan. Then Richard Branson seized the opportunity: if all goes well, Virgin Galactic could fly more people to space in a year than the Russians or Americans have over the past 50 years!

What is next for space travel?
It barely takes 10 minutes to reach low Earth orbit. It probably takes longer for most urbanites to commute to work. I want to be able to "cab it" to low Earth orbit. I am dreaming of private astronaut taxis. The first generation will take paying passengers into orbit. The second generation will ferry us to the moon and Mars.

This article appeared in print under the headline "One minute with... Susmita Mohanty"

Profile

Susmita Mohanty is CEO of Earth2Orbit, which recently launched its first client satellite. She has worked at NASA and Boeing, and holds a PhD in aerospace architecture

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.

If you are having a technical problem posting a comment, please contact technical support.

Read More..