Several dead in Vietnam house explosions

HANOI: Several people were killed when twin blasts tore through a residential street and destroyed three houses in south Vietnam early Sunday, police said, with reports putting the death toll at around 10.

"We have been informed of two explosions this morning that killed about ten people... but we need to check the exact number of the victims," a local policeman told AFP following the blasts, which left many more victims trapped in rubble, according to reports.

The policeman said authorities were investigating the cause of the explosions in a district of the southern metropolis of Ho Chi Minh City, adding that they were believed to have been accidental.

State mouthpiece Tuoi Tre newspaper reported on its website that a family of seven was among those killed and many people remained trapped in the rubble.

It said local people heard two large explosions within five minutes of each other -- causing shockwaves that rattled homes up to several hundred metres away. They discovered three homes ablaze and partially destroyed.

Hundreds of firefighters on more than a dozen fire trucks rushed to the scene and were leading rescue efforts, the newspaper said.

- AFP/fa

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Nokia at MWC 2013: Join us Sunday (live blog)

Nokia CEO Stephen Elop's keynote address at Mobile World Congress in Barcelona, Spain, last year.

(Credit:
Roger Cheng/CNET)

BARCELONA, Spain--Will Nokia unleash another Lumia smartphone?

Nokia kicks off the first official day of Mobile World Congress with its press conference, and you can get all the news right here.

Rather than a high-end superphone, Nokia is expected to unveil a line of more budget-friendly phones in a bid to go after the mass market. That could mean a lower-end Lumia device, as well phones from its Asha line of ultra-low-end phones.

CNET UK's Luke Westaway, photographer Sarah Tew, and I will be bringing you all the details, photos, and commentary from the event. The event kicks off at 11:30 p.m. PT on Sunday, or 8:30 a.m. Monday in local Barcelona time.

You can tune into the live blog here:

Nokia's Mobile World Congress press conference

Nokia, like many cellphone makers, is on the road to recovery, and it's still unclear where the company is headed. Its line of Lumia smartphones has won critical praise, but it doesn't yet have a blockbuster hit like Apple's iPhone or the Galaxy S from Samsung.

Still, the company has made steady progress expanding its distribution. In the U.S., it just got back into the game with Verizon with the Lumia 620, and CEO Stephen Elop has hinted at a potential flagship down the line.

We'll see if Nokia can keep up its momentum with whatever new products it launches tomorrow.

As usual, we'll be using ScribbleLive to bring you live text and photos, blow by blow. We'll start the live blog about 15 minutes before Nokia officially kicks off its event.

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Las Vegas Strip Shooting Suspect ID'd

Las Vegas police identified a suspect today in a shooting on the strip that caused a Maserati to hit a taxi and burst into flames, killing three people.

Ammar Harris, 26, has been named a suspect in the Thursday skirmish that killed three people, including rapper Kenny Clutch.

The altercation between Harris and Clutch, 27, whose legal name was Kenneth Cherry Jr., is believed to have originated in the valet area of a Las Vegas hotel, police said.

Police said Harris fired several rounds into a Maserati that was being driven by Cherry as both vehicles continued northbound on glitzy Las Vegas Boulevard.

The rapper's expensive sports car careened out of control after he was shot, slamming into several cars, including a taxi. The impact caused the cab to burst into flames, killing the driver, Michael Boldon and a female passenger. Witnesses said it looked like the car exploded.

"He was a number one guy," Carolyn Jean Trimble, Boldon's sister, told ABC News.

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"I looked out my window and I could see one vehicle down here on the corner of the intersection totally engulfed in flames," witness John Lamb told ABC News.

Boldon, 62, and his passenger, who has not yet been identified, were both killed, as was Clutch.

Timble said her brother loved driving his taxi around Vegas.

"He came to live with me in Las Vegas last year to help take care of our mother, and the first day he got here he said, 'I have to get a job.' The second day, I came home from work, and he said he got a job," she recalled.

"He says, 'You'll never guess what it is,' and I said, 'what,' and he said, 'taxi cab driver,' and we both fell out laughing," Trimble said. "He loved that job. He never complained. He'd come home and tell me stories about what happened, who he picked up."

Boldon was a single father who raised a 36-year-old son and was a new grandfather. His grandson was named after him, Trimble said.

"Of all the people to take from this earth," she said. "But I guess the Lord needed him."

A passenger in the Maserati was hit and sustained only a minor injury to his arm. Clutch died at University Medical Center.

His father, Kenneth Cherry Sr., expressed his grief for the loss of his son while speaking with ABC News.

"This is something you never really, really ever want to experience as a parent, to lose a child before you go," he said.

Harris is described as 5-foot-11 and 180 pounds. Anyone with information is asked to contact the Las Vegas Metro Police Department's homicide division.

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Rusty rocks reveal ancient origin of photosynthesis

SUN-WORSHIP began even earlier than we thought. The world's oldest sedimentary rocks suggest an early form of photosynthesis may have evolved almost 3.8 billion years ago, not long after life appeared on Earth.

A hallmark of photosynthesis in plants is that the process splits water and produces oxygen gas. But some groups of bacteria oxidise substances like iron instead – a form of photosynthesis that doesn't generate oxygen. Evolutionary biologists think these non-oxygen-generating forms of photosynthesis evolved first, giving rise to oxygen-generating photosynthesis sometime before the Earth's atmosphere gained oxygen 2.4 billion years ago (New Scientist, 8 December 2012, p 12).

But when did non-oxygen-generating photosynthesis evolve? Fossilised microbial mats that formed in shallow water 3.4 billion years ago in what is now South Africa show the chemical fingerprints of the process. However, geologists have long wondered whether even earlier evidence exists.

The world's oldest sedimentary rocks – a class of rock that can preserve evidence of life – are a logical place to look, says Andrew Czaja of the University of Cincinnati in Ohio. These rocks, which are found in Greenland and date back almost 3.8 billion years, contain vast deposits of iron oxide that are a puzzle. "What could have formed these giant masses of oxidised iron?" asks Czaja.

To investigate, he analysed the isotopic composition of samples taken from the oxidised iron. He found that some isotopes of iron were more common than they would be if oxygen gas was indiscriminately oxidising the metal. Moreover, the exact isotopic balance varied subtly from point to point in the rock.

Both findings make sense if photosynthetic bacteria were responsible for the iron oxide, says Czaja. That's because these microbes preferentially oxidise only a small fraction of the dissolved iron, and the iron isotopes they prefer vary slightly as environmental conditions change (Earth and Planetary Science Letters, doi.org/kh5). His findings suggest that this form of photosynthesis appeared about 370 million years earlier than we thought.

It is "the best current working hypothesis for the origin of these deposits", says Mike Tice of Texas A&M University in College Station – one of the team who analysed the 3.4-billion-year-old microbial mats from South Africa.

William Martin at the University of Düsseldorf, Germany, agrees. "Anoxygenic photosynthesis is a good candidate for the isotope evidence they see," he says. "Had these fascinating results been collected on Mars, the verdict of the jury would surely remain open," says Martin Brasier at the University of Oxford. "But [on Earth] opinion seems to be swinging in the direction of non-oxygen-generating photosynthesis during the interval from 3.8 to 2.9 billion years ago."

This article appeared in print under the headline "Photosynthesis has truly ancient origins"

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.

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Hollande wants proper labels on meat meals

PARIS: France's president said Saturday he wanted to see proper labelling of meat in ready-made meals to avert a repeat of the scandal over horsemeat being passed off as beef.

"I want there to eventually be mandatory labels on the meat contained in prepared meals," Francois Hollande said while visiting an agricultural show in Paris.

"Until then, I will support... all initiatives for voluntary labelling" so that "consumers know the origin of the products they are consuming, especially meat."

A vast food scandal erupted in Europe in January after horsemeat was initially found in so-called beef ready-made meals and burgers in Britain and Ireland. It has since spread as far as Hong Kong.

French firm Spanghero has been at the heart of the scandal after it allegedly passed off 750 tonnes of horsemeat as beef, with the product eventually finding its way into 4.5 million "beef" products sold across Europe.

-AFP/fl

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Crave Ep. 110: Prevent a hangover with the worlds first 'sober pill'?

Prevent a hangover with the worlds first 'sober pill'? Ep 110

Subscribe to Crave:

iTunes (HD) | iTunes (SD) | iTunes (HQ)

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Cheers! Scientists have created what may be the world's first pill that can make you sober if you've gone a little too far with the booze. Russian meteorite fragments go up for sale on online, as do Milla Jovovich's shorts. And later this year a man will have surgery to attach a bionic hand that can feel touch sensations.

Crave stories:

- Russian meteorite fragments pop up for sale online

- Amazon opens celebrity memorabilia store

- Nanotech 'sober pill' could one day de-drunk you

- This sheet turns your windows into mirrors

- Man to get first bionic hand that can 'feel'

- Sony PS4 event skewered in animated parody

- Crave giveaway! Kanex Sydnee four-port recharging station

Social networking:

- Stephen on Twitter

- Stephen on Google+

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Space Pictures This Week: Space Rose, Ghostly Horses

• 
  
  
  
  
  
  
  

  Space Rose

  Image courtesy T.A. Rector and H. Schweiker, UAA/WIYN/NOAO/NSF

  Planetary nebula Sh2-174 "blooms" like a rose in a picture released this week by the National Optical Astronomy Observatory (NOAO).

  Nebulae are created when low-mass stars shed their outer layers at the end of their lives. The core of the dying star, called a white dwarf, usually remains at the center of the nebula.

  But not so for the oddly positioned Sh2-174: Its white dwarf is located in the right part of the nebula, in the blue gas pictured above. (See more nebula pictures.)

  Published February 22, 2013

  
  











• 
  
  
  
  
  
  
  

  Universal Delivery

  Photograph courtesy NASA

  An unpiloted resupply vehicle snapped this picture as it approached the International Space Station this week.

  The vehicle provided the 34 crew members on board with essential supplies, including oxygen, water, spare parts, even logistics equipment—2.9 tons of supplies in all. (See pictures of early U.S. spaceflight.)

  Published February 22, 2013

  
  











• 
  
  
  
  
  
  
  

  Everglades of Europe

  Image courtesy Jesse Allen and Robert Simmon, EO-1/NASA/USGS

  The Danube cuts a jade path across part of the Danube Biosphere Reserve in the Ukraine on its way to the Black Sea in an image captured February 5 by NASA's Earth Observing-1 satellite.

  Europe's largest river, the Danube spans 309,447 square miles (801,463 square kilometers) and winds its way through 19 countries.

  Called the "Everglades of Europe," the Danube delta is home to more than 300 species of birds and 45 species of fish, according to NASA's Earth Observatory. (See more river pictures.)

  Published February 22, 2013

  
  











• 
  
  
  
  
  
  
  

  Bird's-Eye View

  Image by Maurizio Cabibbo, My Shot

  Photographer Maurizio Cabibbo submitted this picture of the chaotic center of the Cygnus, or Swan, constellation on February 11 to the National Geographic photo community My Shot.

  Resembling a swan flying across the night sky, Cygnus is easily seen in the summer in the Northern Hemisphere, according to NASA.

  Published February 22, 2013

  
  











• 
  
  
  
  
  
  
  
  











• 
  
  
  
  
  
  
  

  Spirit Horses

  Photograph by Andre Erlich, Your Shot

  An aurora casts a ghostly glow over horses in northern Iceland in a picture submitted to National Geographic's My Shot photography community on February 18.

  Named after Aurora, the Roman goddess of dawn, the vivid beams of light from aurora borealis result from collisions between charged particles released from the sun's atmosphere and gaseous particles in Earth's atmosphere. (See more aurora pictures: "Solar Flare Sparks 'Snakes,' 'Spears.'")

  Published February 22, 2013

  
  











• 
  
  
  
  
  
  
  

  Image courtesy SDO/NASA

  Published February 22, 2013

  
  

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Great Energy Challenge Blog

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Cyberattacks Bring Attention to Security Reform

Recent accusations of a large-scale cyber crime effort by the Chinese government left many wondering what immediate steps the president and Congress are taking to prevent these attacks from happening again.

On Wednesday, the White House released the administration's Strategy on Mitigating the Theft of U.S. Trade Secrets as a follow-up to the president's executive order. The strategy did not outwardly mention China, but it implied U.S. government awareness of the problem.

"We are taking a whole of government approach to stop the theft of trade secrets by foreign competitors or foreign governments by any means -- cyber or otherwise," U.S. Intellectual Property Enforcement Coordinator Victoria Espinel said in a White House statement.

As of now, the administration's strategy is the first direct step in addressing cybersecurity, but in order for change to happen Congress needs to be involved. So far, the Cyber Intelligence Sharing and Protection Act (CISPA) is the most notable Congressional legislation addressing the problem, despite its past controversy.

Last April, CISPA was introduced by House Intelligence Committee Chairman Mike Rogers, R-Mich., and Rep. Dutch Ruppersberger, D-Md. The act would allow private companies with consumer information to voluntarily share those details with the NSA and the DOD in order to combat cyber attacks.

Peter Parks/AFP/Getty Images

The companies would be protected from any liabilities if the information was somehow mishandled. This portion of the act sounded alarm bells for CISPA's opponents, like the ACLU, which worried that this provision would incentivize companies to share individuals' information with disregard.

CISPA passed in the House of Representatives, despite a veto threat from the White House stemming from similar privacy concerns. The bill then died in the Senate.

This year, CISPA was reintroduced the day after the State of the Union address during which the president declared an executive order targeting similar security concerns from a government standpoint.

In contrast to CISPA, the executive order would be initiated on the end of the government, and federal agencies would share relevant information regarding threats with private industries, rather than asking businesses to supply data details. All information shared by the government would be unclassified.

At the core of both the executive order and CISPA, U.S. businesses and the government would be encouraged to work together to combat cyber threats. However, each option would clearly take a different route to collaboration. The difference seems minimal, but has been the subject of legislative debates between the president and Congress for almost a year, until now.

"My response to the president's executive order is very positive," Ruppersberger told ABC News. "[The president] brought up how important information sharing is [and] by addressing critical infrastructure, he took care of another hurdle that we do not have to deal with."

Addressing privacy roadblocks, CISPA backers said the sharing of private customer information with the government, as long as personal details are stripped, is not unprecedented.

"Think of what we do with HIPAA in the medical professions; [doctors do not need to know] the individual person, just the symptoms to diagnose a disease," Michigan Gov. John Engler testified at a House Intelligence Committee hearing in an attempt to put the problem into context.

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Spidey-sense suit tingles when someone gets too close

FOR Peter Parker, it was a tingling sensation that alerted him to an imminent threat. Now anyone can pretend to be Spider-Man by simply donning a suit that lets you feel how close you are to a nearby object. It can even let the wearer navigate with their eyes closed.

The suit, called SpiderSense and built by Victor Mateevitsi of the University of Illinois in Chicago has small robotic arms packaged in modules with microphones that send out and pick up ultrasonic reflections from objects. When the ultrasound detects someone moving closer to the microphone, the arms respond by exerting a growing pressure on the body. Seven of these modules are distributed across the suit to give the wearer as near to 360 degree ultrasound coverage as possible.

"When someone is punching Spider-Man, he feels the sensation and can avoid it. Our suit is the same concept," says Mateevitsi. SpiderSense could help blind people to find their way more easily, he says.

Mateevitsi tested the suit out on students, getting them to stand outside on campus, blindfolded, and "feel" for approaching attackers. Each wearer had ninja cardboard throwing stars to use whenever they sensed someone approaching them. "Ninety five per cent of the time they were able to sense someone approaching and throw the star at them," says Mateevitsi.

"I'm very excited about this," says Gershon Dublon of the Massachusetts Institute of Technology, who also works on augmenting parts of the human body. Mateevitsi's work is a step on the road to giving humans truly integrated extrasensory perception, says Dublon.

Mateevitsi wants to use the suit, or just a few sensors on the arms and back, to boost cyclists' awareness of other traffic on the road. SpiderSense is due to be presented at the Augmented Human conference in Stuttgart, Germany, in March. The team now plans to add more sensors to the suit to increase its resolution.

"We humans have the senses that we are born with and we can't extend them," Mateevisti says. "But there are some threats which are very deadly, but we can't sense them, like radiation. Electronic sensors can feel those threats."

The team also plans to begin trials of SpiderSense with visually impaired people.

This article appeared in print under the headline "Back off, my Spidey senses tell me you're too close"

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.

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"Argo" vs "Lincoln" in knife-edge Oscars race

HOLLYWOOD: Ben Affleck's Iran hostage drama "Argo" goes into Oscars weekend a whisker ahead of Steven Spielberg's presidential "Lincoln", but the race is one of the most unpredictable in recent memory.

Veteran director Spielberg, bidding for his first best picture Oscar since "Schindler's List" in 1994, tops the nominations with 12 nods -- but "Argo" has cleaned up in Hollywood's awards season so far, despite having only seven.

Although he started the season two months ago in front, Spielberg may have to settle Sunday for the best director award -- one that Affleck cannot beat him to, having not been nominated in the category, in a perceived snub.

But again here there could be an upset, with rivals including Taiwan-born Ang Lee for "Life of Pi", David O. Russell for "Silver Linings Playbook", or even Austrian dark horse director Michael Haneke for Cannes-topping "Amour",

One near-certainty Sunday is that "Lincoln" star Daniel Day-Lewis will be named best actor, a record third for the British-Irish actor after wins in 1990 for "My Left Foot" and in 2008 for "There Will Be Blood".

The diffident Day-Lewis, known for his meticulous preparation -- he spent weeks in a wheelchair before playing Christy Brown in "My Left Foot" -- has been modest despite repeatedly taking the stage for acceptance speeches.

"Members of the Academy love surprises, so about the worst thing that can happen to you is if you've built up an expectation," he said, after winning the Screen Actors Guild (SAG) best actor award last month.

"I think they'd probably be delighted if it was anybody else," he added.

For best actress, the early favourite was Jessica Chastain, playing a CIA agent hunting Osama bin Laden in "Zero Dark Thirty", but the clever money is now on Jennifer Lawrence for her turn in "Silver Linings Playbook".

Lawrence, star of the "Hunger Games" blockbuster franchise, has won praise for moving out of her comfort zone as mixed-up widow Tiffany to Bradley Cooper's recovering bipolar Pat, in the romantic comedy with an edge.

The best supporting actress race is more open, although Anne Hathaway is probably still the frontrunner for her heart-wrenching turn in musical adaptation "Les Miserables", which is also nominated for best picture.

The most unpredictable race of all is perhaps for supporting actor, with Hollywood legend Robert De Niro tipped by some for playing Cooper's father in "Silver Linings Playbook".

But strong rivals in the category include Austrian Christoph Waltz as a white bounty hunter who frees Jamie Foxx's black slave in Quentin Tarantino's blood-spattered "Django Unchained", as well as Tommy Lee Jones in "Lincoln".

On the foreign front, the clear frontrunner is "Amour", which won the Palme d'Or at last year's Cannes Film Festival for its heart-wrenching portrayal of an elderly couple coping with encroaching physical and mental illness.

Its French female lead, Emmanuelle Riva, could even cause an upset in the best actress category, some critics believe. If she did, she would be only the sixth performer to win an Oscar in a language other than English.

Riva, who will be 86 on Sunday, is coincidentally also the oldest ever best actress nominee, and up against a shortlist including the youngest ever nominee, nine-year-old Quvenzhane Wallis for "Beasts of the Southern Wild".

"Amour" is also among the nine films nominated for best picture, although it is not seen as a favourite there.

On a more colourful note, the best animated feature contest is widely seen as a battle between Scottish-themed princess adventure "Brave" and "Wreck-It Ralph", about a video game villain fed up with being the bad guy.

The fast and fun movie pays subtle homage to generations of computer games, in a feel-good story appealing to both mainstream cinema-goers and hard-core animation filmmakers at the Academy of Motion Picture Arts and Sciences.

-AFP/fl

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