Daily News – Reuters Science News Headlines - Voyager 1 probe leaving solar system reaches "magnetic highway" exit

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Monday, Dec 03, 2012 06:38 PM PST
Today's Reuters Science News Headlines - Yahoo! News: Voyager 1 probe leaving solar system reaches "magnetic highway" exit NASA's Mars rover finds traces of carbon - one essential for life Scientists find gene link to teenage binge drinking NASA probe reveals organics, ice on Mercury

Voyager 1 probe leaving solar system reaches "magnetic highway" exit  Monday, Dec 03, 2012 06:38 PM PST SAN FRANCISCO (Reuters) - NASA's long-lived Voyager 1 spacecraft, which is heading out of the solar system, has reached a "magnetic highway" leading to interstellar space, scientists said on Monday. The probe, launched 35 years ago to study the outer planets, is now about 11 billion miles (18 billion km) from Earth. At that distance, it takes radio signals traveling at the speed of light 17 hours to reach Earth. Light moves at 186,000 miles per second). Voyager 1 will be the first manmade object to leave the solar system. ... Full Story	Top
NASA's Mars rover finds traces of carbon - one essential for life  Monday, Dec 03, 2012 05:23 PM PST SAN FRANCISCO (Reuters) - NASA's Mars rover Curiosity, dispatched to look for the chemical ingredients and environments for microbial life, has found hints of carbon, though whether this building block for life on Earth has played a similar role on Mars is unknown, scientists said on Monday. "Just finding carbon somewhere doesn't mean that it has anything to do with life, or the finding of a habitable environment," lead scientist John Grotzinger, with the California Institute of Technology, told reporters at the American Geophysical Union conference in San Francisco. ... Full Story	Top
Scientists find gene link to teenage binge drinking  Monday, Dec 03, 2012 02:28 PM PST LONDON (Reuters) - Scientists have unpicked the brain processes involved in teenage alcohol abuse and say their findings help explain why some young people have more of a tendency to binge drink. A study published in the Proceedings of National Academy of Sciences (PNAS) journal found that a gene known as RASGRF-2 plays a crucial role in controlling how alcohol stimulates the brain to release dopamine, triggering feelings of reward. ... Full Story	Top
NASA probe reveals organics, ice on Mercury  Monday, Dec 03, 2012 01:26 PM PST CAPE CANAVERAL, Florida (Reuters) - Despite searing daytime temperatures, Mercury, the planet closest to the sun, has ice and frozen organic materials inside permanently shadowed craters in its north pole, NASA scientists said on Thursday. Earth-based telescopes have been compiling evidence for ice on Mercury for 20 years, but the finding of organics was a surprise, say researchers with NASA's MESSENGER spacecraft, the first probe to orbit Mercury. ... Full Story	Top

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