For only the second time, an exoplanet living with an expansive family of four stars has been revealed.
Astronomers have found an ancient, more compact version of our solar system, which could have implications for the search of extraterrestrial life.
Intriguing features photographed by NASA's Mars rover Curiosity probably don't have a biological origin, mission team members say.
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...
A NASA probe is about to get the first up-close look at a potentially habitable alien world.
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?
New research suggests we might want to widen our search for Earth-like exoplanets. Younger stars, it turns out, are hot enough to support exoplanetary life farther away from a star than we thought.
To account for a lake that lasted for millions of years means the Martian atmosphere would have had to be far thicker and loaded with water.
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