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'Dwarf' star could yield solar system clue
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TUCSON, July 29 (UPI) -- Scientists say the recent discovery of a brown dwarf star, essentially a "failed" star, could shed light on the early stages of solar system formation.
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Busier people may be happier than the idle
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CHICAGO, July 30 (UPI) -- People with a sense of purpose who accomplish a lot, or even those who fill their days with pointless activity, are happier than the idle, U.S. researchers say.
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Sleep may not help surgeon performance
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LOS ANGELES, July 30 (UPI) -- Requiring 5 hours of rest for surgical residents after a 16-hour day is unlikely to improve outcomes for two common operations, U.S. researchers say.
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Online decision aid for battered women
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COLUMBIA, Mo., July 29 (UPI) -- U.S. researchers say they have developed a Web-based program for women experiencing intimate partner violence to develop individualized safety plans.
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EPA rejects challenges to climate report
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WASHINGTON, July 29 (UPI) -- The U.S. Environmental Protection Agency says it has denied 10 petitions challenging its 2009 determination that climate change is real and threatens humans.
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Mars rover snaps photo of dust devil
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PASADENA, Calif., July 29 (UPI) -- NASA's Opportunity Mars rover has spotted and photographed its first dust devil in six years of traveling around the planet, scientists say.
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Study: Good or bad shows up in hand use
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NIJMEGEN, Netherlands, July 29 (UPI) -- People who are right- or-left handed associate "good" things with the side of their body they most use for hand gestures, researchers say.
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College Student-Parent Communications 101
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TORONTO, July 29 (UPI) -- Parents of students leaving home for college need to show interest without seeming to interfere, a Canadian psychologist suggests.
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Scientists find chemical 'memory' molecule
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TEL AVIV, Israel, July 29 (UPI) -- Scientists in Israel say they've identified a chemical in the human brain that helps brain cells store new memories and allows them to "stick."
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Calif. school sets computer data record
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SAN DIEGO, July 29 (UPI) -- U.S. computer scientists say they've broken "the terabyte barrier," setting a world record for sorting a terabyte, 1,000 gigabytes, of data in just 60 seconds.
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Storm study could improve hurricane data
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WASHINGTON, July 29 (UPI) -- Scientists say they'll venture to the Atlantic Ocean to answer a mystery about hurricanes -- why do storms become hurricanes while other harmlessly dissipate?
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Astronomers find planets locked in 'dance'
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PASADENA, Calif., July 29 (UPI) -- Astronomers say they've discovered two giant planets around a distant star doing something they shouldn't be doing -- dancing with each other.
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171M Facebook users' info published online
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LONDON, July 29 (UPI) -- Personal profile information for more than 171 million Facebook users was snatched from the U.S. social-networking Web site and published online.
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Study: Earthquake moved Chile's landscape
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SANTIAGO, Chile, July 29 (UPI) -- The earthquake that struck Chile in February changed the country's landscape and raised parts of its coastline more than 8 feet, researchers say.
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Whales in Gulf to get recording 'session'
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ITHACA, N.Y., July 29 (UPI) -- Electronic "ears" are being placed in the Gulf of Mexico to listen in on whales and investigate their health since the massive oil spill, researchers say.
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