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Feed: SCIENCE NEWS HEADLINES - YAHOO NEWS

Get the latest Science news headlines from Yahoo News. Find breaking Science news, including analysis and opinion on top Science stories.


SpaceX capsule splashes down in Pacific with space station cargo
22-May-15

The SpaceX Dragon commercial cargo craft is grappled by the Canadarm2 robotic arm at the International Space Station in this NASA handout photoBy Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - A Space Exploration Technologies Dragon cargo capsule made a parachute splashdown into the Pacific Ocean on Thursday, wrapping up a five-week stay at the International Space Station. The capsule blasted off on April 14 aboard a Falcon 9 rocket from Cape Canaveral Air Force Station in Florida and arrived at the orbiting outpost three days later with more than 4,300 pounds (1,950 kg) of food, supplies and science experiments for the live-aboard crew. It was repacked with 3,100 pounds of science samples and other equipment and released back into orbit at 7:04 a.m. EDT (1104 GMT) on Thursday for a return trip to Earth, a NASA TV broadcast showed.






Bowwow wow! Dog domestication much older than previously known
21-May-15

The lower jawbone of the Taimyr Wolf that lived approximately 27,000 to 40,000 years agoBy Will Dunham WASHINGTON (Reuters) - Genetic information from a 35,000-year-old wolf bone found below a frozen cliff in Siberia is shedding new light on humankind's long relationship with dogs, showing canine domestication may have occurred earlier than previously thought. Scientists said on Thursday they pieced together the genome of the wolf that lived on Russia's Taimyr Peninsula and found that it belonged to a population that likely represented the most recent common ancestor between dogs and wolves. Using this genetic information, they estimated that dog domestication occurred between 27,000 and 40,000 years ago.






Scientists want you to know plankton is not just whale food
21-May-15

Handout of scientists aboard the Tara Oceans vessel use plankton nets to strain microbes from seawaterBy Will Dunham WASHINGTON (Reuters) - Scientists on Thursday unveiled the most comprehensive analysis ever undertaken of the world's ocean plankton, the tiny organisms that serve as food for marine creatures such as the blue whale, but also provide half the oxygen we breathe. Plankton include microscopic plants and animals, fish larvae, bacteria, viruses and other microorganisms that drift in the oceans. "Plankton are much more than just food for the whales," said Chris Bowler, a research director at France's National Center for Scientific Research, and one of the scientists involved in the study published in the journal Science.






Lockheed-Boeing rocket venture needs commercial orders to survive
21-May-15

By Andrea Shalal WASHINGTON (Reuters) - United Launch Alliance, a 50-50 joint venture of Lockheed Martin Corp and Boeing Co, on Thursday said it would go out of business unless it won commercial and civil satellite launch orders to offset an expected slump in U.S. military and spy launches. ULA President Tory Bruno said the company must attract those kind of orders to remain a "viable economic entity" so it is scrambling to restructure and develop a new rocket that in seven or eight years could launch satellites twice as fast at half the current cost. Formed by the two largest U.S. weapons makers in 2006, ULA has long been the sole company able to launch U.S. military and intelligence satellites into orbit.



Mind-controlled prosthetic limbs allow precise, smooth movement
21-May-15

Patient Erik Sorto takes a drink in this handout photoBy Will Dunham WASHINGTON (Reuters) - More than a decade after becoming paralyzed from the neck down, Erik Sorto has been unable to perform even the simplest of daily tasks. "That was the ultimate goal: to drink a beer by myself," said Sorto, a 34-year-old from Los Angeles who became a quadriplegic after a 2002 gunshot wound. Things may be looking up for Sorto and others with similar disabilities.






Sudden Infant Deaths Linked to Elevation
25-May-15

Babies who live at high elevations, those above 8,000 feet (2,438 meters), may face a slightly increased risk of Sudden Infant Death Syndrome, or SIDS, new research finds. "The absolute risk [of SIDS] remains very low, and … this is in no way a call to abandon residence [in] or visits to high-altitude" locations, said study researcher Dr. David Katz, a cardiologist at the University of Colorado Denver. But the research does suggest that low oxygen levels might play a role in SIDS — and that finding could hint at the cause of tragic, unexplained infant deaths.



How Does Salmonella Get into Sushi?
25-May-15

Raw tuna is the suspected source of a new outbreak of Salmonella, but how does tuna become contaminated with the bacteria in the first place? Experts say that the Salmonella probably wasn't living on the fish itself, but rather the tuna became contaminated at some point when the food was being handled. So far, at least 53 people in nine states have been sickened with a rare strain of Salmonella called Paratyphi B, according to the Centers for Disease Control and Prevention.



Memorial Day Meals: Expert Tips for Packing a Healthy Picnic
23-May-15

Memorial Day is considered the unofficial start of summer and perhaps the unofficial start of the outdoor eating season. Picnics are appealing, especially to people in colder climates who don't get many chances to eat outside in nice weather and enjoy a slow, relaxing meal, and they could also bring back childhood memories, said Sara Haas, a dietitian and chef in Chicago and a spokeswoman for the Academy of Nutrition and Dietetics. So pack up the red-checkered tablecloth, coolers and picnic basket, and bring along family and friends.



See Jupiter and the Moon in Night Sky Spectacle Tonight
23-May-15

See Jupiter and the Moon in Night Sky Spectacle TonightThere, about half way up from the south-southwest horizon to the overhead point, you’ll see an eye-catching sight for the Memorial Day weekend: Jupiter and the moon in a celestial display. Tonight, a rather wide crescent moon, 34-percent illuminated will be visible against the darkening sky and hovering about 3 degrees almost directly above this lunar sliver will be a brilliant silvery white "star." But this isn't a star, but the planet identified with the supreme sky-god, Jupiter. To judge how far apart Jupiter and the moon will appear in the sky, remember that your clenched fist, correctly held, will measure 10 degrees of the night sky.






What Are Those Bright Spots on Ceres? Go Vote!
22-May-15

What Are Those Bright Spots on Ceres? Go Vote!The puzzling white spots on the surface of the dwarf planet Ceres are definitely reflecting sunlight, scientists said, but the cause of the marks remains a mystery. The newest batch of images from the Dawn spacecraft, which began orbiting Ceres on March 6, was released May 15. With the release of these new images, NASA has asked the public to submit a guess for what is creating the spots: volcanos, geysers, rocks, ice, salt deposits, or "other." As of this writing, 37 percent of people who took NASA's poll for what the white spots might be said "other." Alien colonies, perhaps?






Study: Europeans to suffer more ragweed with global warming
25-May-15

FILE - In this Aug. 14, 2001 file photo, pollen on a ragweed plant in is seen Newark, N.J. A new study says global warming will bring much more sneezing and wheezing to Europe by mid-century. It’s projected that ragweed pollen levels are likely to quadruple for much of Europe. But why? Warmer temperatures will allow the plants to take root more and carbon dioxide will make them grow more. That’s according to the study published Monday in the journal Nature Climate Change. (AP Photo/Daniel Hulshizer, File)WASHINGTON (AP) — Global warming will bring much more sneezing and wheezing to Europe by mid-century, a new study says.






Squid 'Sees' with Its Skin (No Eyes Needed)
23-May-15

Squid, cuttlefish and octopuses are masters of camouflage, capable of changing their skin colors and patterns in the blink of an eye. Two new studies, published this week in the Journal of Experimental Biology, find that cephalopod skin is chock-full of light-sensing cells typically found in eyes that help them "see." The cells likely send signals to alter skin coloration without involving the central nervous system, the researchers said. "It may be that the patterning is just generated directly on the spot, just by the cells," said Tom Cronin, a biologist at the University of Maryland and an author of one of the studies.



Prosecutors: Professor offered China data on US-made device
22-May-15

PHILADELPHIA (AP) — The chairman of Temple University's physics department schemed to provide U.S. technology secrets to China in exchange for prestigious appointments for himself, federal authorities said in charging him with four counts of wire fraud.



Feds: Temple professor offered China data on US-made device
22-May-15

The chairman of Temple University's physics department was arrested in what prosecutors said was a scheme to provide U.S. technology secrets to China in exchange for prestigious appointments. Xi Xiaoxing, ...



Ancient Wolf DNA Could Solve Dog Origin Mystery
21-May-15

Ancient Wolf DNA Could Solve Dog Origin MysteryGenetic evidence from an ancient wolf bone discovered lying on the tundra in Siberia's Taimyr Peninsula reveals that wolves and dogs split from their common ancestor at least 27,000 years ago. "Although separation isn't the same as domestication, this opens up the possibility that domestication occurred much earlier than we thought before," said lead study author Pontus Skoglund, who studies ancient DNA at Harvard Medical School and the Broad Institute in Massachusetts. "Siberian huskies have a portion of their genome that traces back exclusively to this ancient Siberian wolf," Skoglund told Live Science.






Bowwow wow! Dog domestication much older than previously known
21-May-15

The lower jawbone of the Taimyr Wolf that lived approximately 27,000 to 40,000 years agoBy Will Dunham WASHINGTON (Reuters) - Genetic information from a 35,000-year-old wolf bone found below a frozen cliff in Siberia is shedding new light on humankind's long relationship with dogs, showing canine domestication may have occurred earlier than previously thought. Scientists said on Thursday they pieced together the genome of the wolf that lived on Russia's Taimyr Peninsula and found that it belonged to a population that likely represented the most recent common ancestor between dogs and wolves. Using this genetic information, they estimated that dog domestication occurred between 27,000 and 40,000 years ago.






Scientists reveal Washington state's first dinosaur
20-May-15

SEATTLE (AP) — Scientists say they've discovered Washington state's first dinosaur fossil, an announcement that marks a unique find for the state and a rare moment for North America's Pacific coast.



Professor seeks retraction of Science article he co-authored
20-May-15

NEW YORK (AP) — Citing irregularities on the part of his colleague, a prominent Columbia University professor has asked Science magazine to retract a study he co-authored last year about the ability of openly gay canvassers to shift voters' views toward support for same-sex marriage.



Dolphin die-off in Gulf of Mexico spurred by BP oil spill: scientists
20-May-15

Louisiana Department of Wildlife and Fisheries photo of a stranded dead dolphin that came ashore in 2012By Letitia Stein TAMPA, Fla. (Reuters) - A record dolphin die-off in the northern Gulf of Mexico was caused by the largest oil spill in U.S. history, researchers said on Wednesday, citing a new study that found many of the dolphins died with rare lesions linked to petroleum exposure. Scientists said the study of dead dolphins tissue rounded out the research into a spike of dolphin deaths in the region affected by BP Plc's oil spill that was caused by the 2010 Deepwater Horizon oil rig explosion. Millions of barrels of crude oil spewed into Gulf waters, and a dolphin die-off was subsequently seen around coastal Louisiana, Alabama and Mississippi, according to the National Oceanic and Atmospheric Administration (NOAA).






Scientists to submit GM mustard report to government
19-May-15

A farmer casts urea on her mustard field in the northern Indian city of AllahabadBy Krishna N. Das and Rupam Jain Nair NEW DELHI (Reuters) - Indian scientists have completed final trials of a genetically modified (GM) variety of mustard and will submit a report to the government in a month, hoping to win over stiff opposition to make it the country's first commercial transgenic food crop. A powerful farmers group close to Prime Minister Narendra Modi's Bharatiya Janata Party (BJP) is one of the biggest critics of GM crops and wants the government to stop all field trials saying they "will destroy the entire agrarian economy". Allowing GM crops is critical to Modi's goal of boosting farm productivity in India, where urbanization is devouring arable land and population growth will mean there are 1.5 billion mouths to feed by 2030 - more even than China.










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