Thursday, March 12, 2015

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Prehistoric 'Sea Monster' Had More Legs Than Thought

A 480-million-year-old fossil is giving paleontologists new insights into a sea monsterlike creature called an anomalocaridid, which is an ancestor of modern-day arthropods such as lobsters and scorpions, a new study finds. The researchers named the species Aegirocassis benmoulae after its discoverer, Mohamed Ben Moula, who found the fossil in southeastern Morocco in 2011. The fossil was "dirty and dusty" when the study's lead researcher, Peter Van Roy, a paleontologist at Yale University, got it into the lab. Van Roy was cleaning the specimen when he realized it had two sets of flaps on each body segment — indicating that the creature had two sets of legs.


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U.S. astronaut, two Russian cosmonauts prepare to leave space station

By Irene Klotz CAPE CANAVERAL, Fla (Reuters) - A NASA astronaut and two Russian cosmonauts boarded a Russian Soyuz capsule on Wednesday and prepared to leave the International Space Station after nearly six months in orbit, a NASA Television broadcast showed. Outgoing NASA station commander Barry "Butch" Wilmore and flight engineers Alexander Samokutyaev and Elena Serova, with the Russian space agency Roscosmos, sealed themselves into the Soyuz capsule shortly after 3:30 p.m. EDT (1930 GMT), the same spaceship that carried them into orbit on Sept. 25. On Tuesday, Wilmore turned over command of the station to NASA astronaut Terry Virts, who is due to remain aboard the orbital outpost, along with cosmonaut Anton Shkaplerov and Italian astronaut Samantha Cristoforetti, until mid-May. Wilmore partnered with Virts for a trio of spacewalks between Feb. 21 and March 1 to prepare parking spots for two new commercial space taxis hired by NASA to begin ferrying crewmembers to and from the station in 2017.

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Sun Unleashes 1st Monster Solar Flare of 2015 (Photos, Video)

The sun unleashed its first superpowerful flare of the year on Wednesday (March 11), and the intense eruption was aimed directly at Earth, space weather experts say.


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US-Russian Space Station Crew Headed Back to Earth

Three International Space Station crewmembers — including one NASA astronaut — are on their way back to Earth today (March 11) after a nearly six-month stint aboard the orbiting outpost. NASA's Barry "Butch" Wilmore and cosmonauts Alexander Samokutyaev and Elena Serova are expected to land on the steppes of Kazakhstan in Central Asia at 10:07 p.m. EDT (0207 March 12 GMT).


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Oceans yield 1,500 new creatures, many others lurk unknown

By Alister Doyle OSLO (Reuters) - Scientists identified almost 1,500 new creatures in the world's oceans last year, including a humpbacked dolphin and a giant jellyfish, and reckon that most species of marine life are yet to be found. The experts publishing their findings on Thursday listed a total of 228,450 marine species worldwide, ranging from seaweeds to blue whales, and estimated that between 500,000 and 2 million more multi-celled marine organisms were still unknown. "The deep sea has been poorly explored so far," Jan Mees, co-chair of the World Register of Marine Species (WoRMS), told Reuters. For 2014, the project identified 1,451 new marine species - about four a day - including the Australian humpback dolphin, 139 sponges, a South African "star-gazing shrimp" and a giant, venomous, tentacle-free box jellyfish about 50 cm (20 inches) long found off Australia.

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US-Russian Space Crew Returns to Earth After 167 Days in Orbit

An American astronaut and two Russian cosmonauts have landed safely on after 167 days in orbit at the International Space Station. "I'm glad to be back," NASA astronaut Barry "Butch" Wilmore said after being pulled from the Soyuz space capsule alongside his Russian crewmates Alexander Samokutyaev and Elena Serova. Wilmore wore a broad grin and gave a thumb's up sign to cameras. The crew traveled 71 million miles during their nearly six-month mission to the space station.


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U.S.-Russian space trio land safely in Kazakhstan

By Dmitry Solovyov ALMATY (Reuters) - A NASA astronaut and two Russian cosmonauts landed safely in a snow-covered Kazakh steppe on Thursday after a 167-day mission aboard the International Space Station (ISS). A capsule carrying NASA station commander Barry "Butch" Wilmore and Russian flight engineers Alexander Samokutyaev and Elena Serova landed in a vertical upright position shortly after sunrise at 0807 (2207 ET), some 147 km (92 miles) southeast of the town of Zhezkazgan in central Kazakhstan. "Everything is going on by the book," said a NASA television commentator.


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Jupiter Is Dazzlingly Bright in the March Night Sky: How to See It

The brilliant planet Jupiter has been attracting a great deal of skywatching attention lately, even from within brightly lit cities. Presently, Jupiter can be found within the faint stars of Cancer the Crab.


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Snowy Owls' NYC Visit Reveals Migration Habits

This was another banner winter for snowy owl sightings in New York City. At least seven have been spotted since December, typically in wide-open areas (like by coastlines or even near airport runways) that resemble the birds' tundra homes. While it may sound strange to see snowy owls in New York City, the sightings aren't all that unusual, experts say. This year is simply a continuation of last year's great migration, when 22 owls were spotted in New York City alone.

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More Big Earthquakes Coming to California, Forecast Says

A new view of California's earthquake risk slightly raises the likelihood of big earthquakes in the Golden State, but lowers the chance that people in some regions will feel shaking from smaller, magnitude-6.7 quakes. This information helps set earthquake insurance rates and building codes in California. A magnitude-8 quake would be twice as strong as the devastating 1906 San Francisco earthquake, a magnitude 7.8. Meanwhile, the analysis said that Californians should expect a magnitude-6.7 quake to occur every 6.3 years somewhere in the state, which is less than the estimate of every 4.8 years from the previous forecast, released in 2007.


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San Diego Zoo Turns Off Panda Cam for Mating Time

If the San Diego Zoo's panda cam is a daily source of procrastination, we have some bad news for you: Footage may be a little spotty over the next few days because it's mating season. Pandas only have a 48-to-72-hour window each year to make a baby, so time is of the essence for Bai Yun and Gao Gao. Officials at the San Diego Zoo said the panda keepers had been watching for signs that the female adult, Bai Yun, is entering estrus. Finally, on Tuesday morning (March 10), Bai Yun and Gao Gao were put in the same enclosure for their first breeding attempt since 2012.


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Cosmic Smashups May Have Rained Metal on Early Earth

Iron vapor from cosmic impacts during the early days of Earth could have triggered "metal rain" to fall on the newborn planet, researchers say. Cosmic impacts have played a critical role in the evolution of the solar system. The moon was likely born from the wreckage of a collision 4.5 billion years ago between Earth and a Mars-size object called Theia. "One major problem is how we model iron during impact events, as it is a major component of planets and its behavior is critical to how we understand planet formation," lead study author Richard Kraus, a shock physicist at Lawrence Livermore National Laboratory in Livermore, California, said in a statement.


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'Twixed' and 'Munchy'? Candylike Marijuana Could Endanger Kids

New foods that look like candy but contain marijuana can now be bought legally in some U.S. states, but these products pose health concerns for children, researchers argue. In the United States, candylike marijuana products first emerged in medical marijuana dispensaries, and have become popular since the legalization of marijuana in several states, said Robert MacCoun, a professor at Stanford Law School. "There's the concern that young children will find these products and eat them, thinking they are ordinary sweets," MacCoun told Live Science. "This can be a very traumatic experience, and there are even some indications it can be physically dangerous for young children," he said.

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5 Weird Ways Cold Weather Affects Your Psyche

Cold temperatures can influence our thoughts and decisions without our even knowing it, experts have found. Here are five unexpected ways cold weather may influence people. Cold weather may influence what colors women wear, but only during a certain time of the month, according to research published in 2013 and 2014. The research showed that during cold weather, "Women are more likely to wear shades of red and pink on days when they're ovulating," said Jessica Tracy, who authored the research and is an associate professor of psychology at the University of British Columbia in Canada.

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After first lab-grown burger, test-tube chicken is next on menu

Professor Amit Gefen, a bioengineer at Tel Aviv University, has begun a year-long feasibility study into manufacturing chicken in a lab, funded by a non-profit group called the Modern Agriculture Foundation which hopes "cultured meat" will one day replace the raising of animals for slaughter. The foundation's co-founder Shir Friedman hopes to have produced "a recipe for how to culture chicken cells" by the end of the year. The researchers say their task is more difficult than producing the first lab-grown hamburger, a $300,000 beef patty cooked up at Maastricht University in the Netherlands after five years of research financed by Google co-founder Sergey Brin. Gefen, an expert in tissue engineering, said the plan is to culture chicken cells and let them divide and multiply.

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Neanderthals Wore Eagle Talons As Jewelry 130,000 Years Ago

Long before they shared the landscape with modern humans, Neanderthals in Europe developed a sharp sense of style, wearing eagle claws as jewelry, new evidence suggests. Researchers identified eight talons from white-tailed eagles — including four that had distinct notches and cut marks — from a 130,000-year-old Neanderthal cave in Croatia. "It really is absolutely stunning," study author David Frayer, an anthropology professor at the University of Kansas, told Live Science.


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Hot water clue to life on Saturn moon

(Reuters) - Scientists have found that Enceladus, a small moon orbiting the giant ringed planet Saturn, is likely to possess an ocean containing hot water under its icy crust, raising the prospects that it could host life, according to research published in U.K. magazine Nature on Thursday (March 12). Situated some 850 million miles (1.3 billion km) away in the outer solar system, icy Enceladus seems an unlikely place for liquid water. Cassini's Cosmic Dust Analyser helped the scientists find dust particles in one of Saturn's rings came from plumes erupting from Enceladus. Associate professor at University of Tokyo, Yasuhito Sekine, analyzed the silica nanoparticles and revealed that the ocean contains water at least 90-degree Celsius (194-degree Fahrenheit) in temperature, which makes the small planet a possible host of living organisms.

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Scientists call for halt on experiments changing DNA of human embryos

By Sharon Begley NEW YORK (Reuters) - With rumors that scientists are about to announce they have modified the genes of human eggs, sperm, or embryos, five prominent researchers on Thursday called on biologists to halt such experiments due to fears about safety and eugenics. The call for a self-imposed research moratorium, which is extremely rare in science, was based on concerns that the work crosses an ethical line, said Edward Lanphier, president and chief executive officer of California-based Sangamo BioSciences Inc, senior author of the commentary published in the science journal Nature. "The research should stop." Rumors that one or more labs are on the verge of genetically-engineering a human embryo have swirled for months, he said. Critics of the work say the experiments could be used to try to alter the genetic quality of humans, a practice and belief known as eugenics.

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China's Yutu rover finds layers inside the moon

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - The moon has a more complex history than previously thought with at least nine subsurface layers, results from ground-penetrating radar aboard China's Yutu lunar rover shows, scientists said on Thursday. China's Chang'e-3 spacecraft touched down on the moon in December 2013 and dispatched the Yutu, or "Jade Rabbit," rover for an independent study of the landing site. After zigzagging 374 feet (114 meters) on the surface, Yutu stopped near a relatively fresh crater southwest of the landing site, in a region known as Mare Imbrium. Compared to NASA's 1969-1972 Apollo landing sites and other locations visited by Soviet-era landers, the northeast region of the Imbrium basis is younger, with complex subsurface structures, lead researcher Long Xiao, with the China University of Geosciences in Wuhan, wrote in a paper published in this week's issue of the journal Science.

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Live Underwater Tour of WWII Shipwreck Airs Tonight

Tonight, you'll be able to virtually tour a sand-caked Japanese battleship that has been sitting on the seafloor since World War II. Weather permitting, Allen's expedition team will broadcast a live underwater tour of the shipwreck tonight (March 12) at 9 p.m. EDT (0100 GMT Friday, March 13).


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Revved-up CERN collider aims to shed light on dark cosmos

By Robert Evans GENEVA (Reuters) - Scientists at the CERN physics research center said on Thursday the mystery dark matter that makes up 96 percent of the stuff of the universe will be a prime target for their souped-up Large Hadron Collider (LHC) in the coming years. I want to see the first light in the Dark Universe," CERN chief Rolf Heuer told a news conference, referring to a concept that includes not just dark matter but the dark energy believed to be driving the universe apart. "We don't know what dark matter is, but maybe there is a place where we can find it (in the LHC)," said Dave Charlton, spokesman for the ATLAS experiment at CERN, the European Organisation for Nuclear Research near Geneva. The press conference was called before the relaunch of the subterranean LHC later this month, after a two-year shutdown that saw its energy power doubled.


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Amped-Up Atom Smasher Will Look For New Particles, Dark Matter

The world's largest particle accelerator, which famously discovered the long-sought Higgs boson in 2012, will soon start up again at almost double the energy of its first run. After a two-year hiatus for upgrades, the Large Hadron Collider (LHC), at the European Organization for Nuclear Research (CERN) in Switzerland, will be able to produce particle collisions at an energy of 13 teraelectron volts (TeV) by May, compared to the 8-TeV collisions during previous operations, CERN officials said at a news conference today (March 12). This could include finding other Higgs bosons, or producing dark matter, the mysterious substance that makes up about 85 percent of the total matter in the universe, researchers said. The LHC consists of a 17-mile-long (27 kilometers) ring of superconducting magnets that accelerates particles to near the speed of light.


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