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“Extraterrestrial Life”

Jan 7, 2015 02:50 PM ET // Mike Wall, Space.com
NASA's Kepler spacecraft has discovered its 1,000th alien planet, further cementing the prolific exoplanet-hunting mission's status as a space-science legend.
Jan 7, 2015 01:25 PM ET // Ian O'Neill
After pointing the Allen Telescope Array at a newly-found exoplanet discovered by NASA's Kepler space telescope, SETI reports there is no transmitting alien civilization. But the search continues...
Dec 30, 2014 01:10 PM ET // Mike Wall, Space.com
The huge geysers on Jupiter's icy moon Europa have gone underground.
Dec 19, 2014 11:34 AM ET
Methane is such a promising sign for the existence of biological life that it's hard not to get excited when it's detected on Mars. But Amy Shira-Teitel runs down some other ways the gas could be observed on the Red Planet without their being life.
Dec 16, 2014 01:30 PM ET // Irene Klotz
A gas strongly associated with life on Earth has been detected again in the Martian atmosphere, opening a new chapter in a decade-old mystery about the on-again, off-again appearance of methane on Mars.
Dec 15, 2014 04:07 PM ET // Ian O'Neill
Astronomers have detected a huge array of exoplanets of different sizes -- now we are on the verge of detecting worlds of different shapes.
Dec 11, 2014 05:39 PM ET // Ian O'Neill
For the first time, a computer simulation has shown that, in theory, habitable binary planets can exist -- what would this mean for the evolution of alien life?
Dec 3, 2014 03:07 PM ET // Ian O'Neill
Dust gets everywhere, particularly around young stars. But when it comes to the presence of dust in their interplanetary environments, many mature sun-like stars are very house-proud. Continue reading →
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