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The SETI Institute’s Jill Tarter talks about her career searching for intelligent life beyond Earth.
Planet hunters say they've identified the first planet orbiting a distant star with conditions right to sustain liquid water and, perhaps, life.
SETIcon celebrates all things extraterrestrial this weekend.
Funding cutbacks have forced the hibernation of the Allen Telescope Array--that's the series of dishes used to search for radio signals from alien life.
Astronomer Steven Vogt discusses a new discovery of a potentially habitable exoplanet.
In this month's Science Diction, we look at the origins of the word 'comet.'
The comet ISON, discovered by two amateur astronomers last year, will zoom past ...
The European Space Agency’s Philae lander is the first probe to touch down on a ...
The Rosetta spacecraft has detected the scent of a comet...and it stinks.
As Comet ISON skirts the sun, it could be destroyed—or emerge, even more spectac...
\tIn 2011, comet Lovejoy traveled through the sun’s corona and lived to tell the tale. But its tail was the most telling. Reporting in the journal Science, Cooper Downs, an astrophysicist at Predictive Science Inc. in San Diego, Calif., says that the wiggly path of the comet’s tail helps explain the sun’s magnetic field. \t