Posted by Ray Villard Tue Feb 7, 2012 11:17 AM ET | 0
One solution to the Fermi Paradox is that there are "green aliens" that have reached a Utopian state of being in balance with nature by not generating waste products -- and are therefore undetectable. Read more
Posted by Ian O'Neill Thu Jan 26, 2012 03:57 PM ET | 0
The number of known multi-planetary star systems has just tripled. Read more
Posted by Ray Villard Wed Jan 18, 2012 12:29 PM ET | 0
The types of planets and planetary systems out there are so varied that just about anything is possible in a "compulsive" universe. Read more
Posted by Ian O'Neill Sat Jan 14, 2012 06:58 PM ET | 0
There's a veritable menagerie of alien worlds out there, and astronomers may have spotted the weirdest yet: An exoplanet that 'oozes.' Read more
Posted by Ian O'Neill Fri Jan 13, 2012 03:20 PM ET | 0
Week 2 of the Google+ Space Hangout was a great success, discussing everything from dark matter to exoplanets. Watch it now! Read more
Posted by Ian O'Neill Thu Jan 12, 2012 12:04 PM ET | 0
Have astronomers spotted Saturn's twin (plus rings) orbiting a star 420 light-years away? Read more
Posted by Jason Major Wed Jan 11, 2012 05:38 PM ET | 0
Astronomers have announced the smallest planets yet discovered outside of our solar system, closely orbiting a dim red dwarf star 130 light-years away. Read more
Posted by Ian O'Neill Wed Jan 11, 2012 01:00 PM ET | 0
Using a method known as "microlensing," astronomers have estimated the number of exoplanets that may exist in our galaxy. Read more
Posted by Ian O'Neill Mon Jan 9, 2012 05:55 PM ET | 0
You may be familiar with science fiction renderings of alien sunsets, but what would a real exoplanetary sunset look like? Read more
Posted by Ian O'Neill Fri Jan 6, 2012 02:34 PM ET | 0
The search for alien signals on Kepler's exoplanets has turned up its first results -- sadly, the signals are not alien. Read more
Posted by Ian O'Neill Wed Jan 4, 2012 12:20 PM ET | 0
Only four days into the New Year and the first four exoplanets of 2012 have been spotted orbiting four distant stars. Read more
Posted by Ray Villard Fri Dec 30, 2011 12:37 PM ET | 0
We don't know how Earth got tanked-up with its water supply, so how could we guess what's happening on worlds thousands of light-years away? Read more
Posted Tue Dec 27, 2011 07:00 AM ET | 0
The last 12 months have been busy with incredible space discoveries -- what was YOUR favorite story? Read more

Posted by Irene Klotz Wed Dec 21, 2011 01:00 PM ET | 0
Two Earth-sized worlds are seen orbiting a burned-out star, defying theories about the ultimate fate of planets. Read more

Posted by Ian O'Neill Wed Dec 21, 2011 05:28 AM ET | 0
Kepler has spotted small worlds orbiting close to their stars and other worlds orbiting inside habitable zones -- when will the discovery of a bona fide Earth-like exoplanet be announced? Read more
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