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By Heidi Ledford of Nature magazine A widely touted--but controversial--molecular fountain of youth has come under fire yet again, with the publication of new data challenging the link between proteins called sirtuins and longer lifespan. In a paper published today in Nature , researchers report that overexpressing a sirtuin gene in two model organisms--the nematode Caenorhabditis elegans and the fruitfly Drosophila melanogaster --does not boost longevity as had been previously reported. [More]

%excerpt% Read the rest here: Space – It’s not just for Astronauts: Personal reflections from a NASATweetup

By Eugenie Samuel Reich of Nature magazine Shortly after 2 p.m. [More]

(Adds details) By Yoko Kubota [More]

Bacteria easily elude human detection--even those that can make us sick--quietly spreading from person to person, country to country. [More]

Information and media firm Thomson Reuters released its annual Nobel Prize predictions today, highlighting 24 researchers whose influential work could make them contenders for a Nobel in physics, chemistry, economics, or physiology or medicine. [More]

Playing an instrument as a kid leads to a sharper mind in old age, according to a new study. [More]

By Kelli Dugan MOBILE, Ala., Sept 20 (Reuters) - Oil mats submerged in the [More]

By Kelli Dugan MOBILE, Ala., Sept 20 (Reuters) - Oil mats submerged in the [More]

David Cleavinger distinctly remembers looking out to his cornfields on a recent 111-degree summer day in Wildorado, Texas. Winds were whipping the stalks at 40 mph, and despite the puddles of water settling in the irrigated corn rows, he knew his crop would barely stand a chance this season. [More]

When I unwrapped my New York Times on Sunday, I was met with a surprise: A front-page, above-the-fold story about a young adult with autism. [More]

By Jim Forsyth SAN ANTONIO (Reuters) - Trees falling on power lines caused a massive, record-breaking wildfire that destroyed nearly 1,600 homes in Central Texas, the Texas Forest Service reported on Tuesday. [More]

By Kevin Murphy KANSAS CITY, Mo (Reuters) - The deadly May 22 tornado in Joplin, Missouri caught many residents unprepared, partly because warnings issued that day were met with complacency and confusion, a federal report said on Tuesday. [More]

Flu season is just around the corner in the northern hemisphere. But for birds and pigs, it's flu season year round.

Twenty-two individuals will soon be a half-million dollars richer, having won this year’s so-called genius grants. [More]