A new exoplanet candidate has just burst onto the scene, and it may be one of the best alien worlds yet on which to search for extraterrestrial life. It's just 18 light-years away: a super-Earth named ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

Scientists have discovered over 6,000 planets that orbit stars other than our sun, known as exoplanets. More than half of these planets were discovered thanks to data from NASA's retired Kepler ...

Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head.

NASA announced a new milestone in its search of the stars. It has now found more than 5,000 exoplanets -- those outside of our solar system. “It’s not just a number,” Jessie Christiansen, a researcher ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have identified a newly discovered exoplanet that may orbit within the outer edge of its star's habitable zone, ...

Could a recently discovered "super-Earth" have the potential temperature and conditions to sustain life? The new exoplanet is situated "fairly close to us" -- only 137 light-years away -- and orbits ...

An “extra exceptional” Tatooine-like exoplanet, orbiting two suns, has been discovered. Astronomers say the “huge” new world is six times the size of Jupiter despite only forming 50 million years ...

Astronomers have discovered 41 new alien planets in one sweep by analyzing how each world gravitationally yanks on its neighbors. The newly confirmed exoplanets were spotted by NASA's prolific Kepler ...

Scientists have discovered over 6,000 planets that orbit stars other than our sun, known as exoplanets. More than half of these planets were discovered thanks to data from NASA's retired Kepler ...