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Alien Life & Exoplanets

This Just In
May 19, 2015 12:08 PM ET // Jesse Emspak, LiveScience
If alien life does exist, scientists aren't sure what it would look like, but one cosmologists says such extraterrestrial creatures will be big — nearly 660 lbs. (314 kilograms), says a cosmologist who bases the estimate on statistics.
May 13, 2015 08:06 AM ET // Ian O'Neill
By tracking the phases of six exoplanets, astronomers have tracked their daily weather cycles for the first time.
May 12, 2015 05:19 PM ET // Irene Klotz
Salt from an underground sea on Jupiter’s moon Europa may be seeping onto the surface, then darkening as it is exposed to radiation.
May 12, 2015 10:15 AM ET // Mike Wall, Space.com
A wide-ranging search of faraway galaxies has turned up no obvious signs of advanced alien civilizations.
May 5, 2015 10:20 AM ET // Ian O'Neill
Observations by NASA's Spitzer Space Telescope have revealed wild atmospheric changes on a well studied exoplanet -- changes that could be driven by extreme volcanic activity.
May 4, 2015 08:15 AM ET // Mike Wall, Space.com
Astronomers have discovered two new alien worlds a bit larger than Earth circling a nearby star.
Apr 28, 2015 11:00 AM ET // Irene Klotz
What has Antarctica and Mars got in common? Mineral deposits from a briny subsurface aquifer suggest bacteria are hiding under the barren Antarctic landscape -- can the same be said for the red planet?
Apr 22, 2015 12:30 PM ET // Mike Wall, Space.com
Astronomers have detected an exoplanet's visible-light spectrum directly for the first time ever, a milestone that could help bring many other alien worlds into clearer focus down the road.
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