7 Alien Earths; May Be Swapping Life via Meteorites
Tiny life-forms can move easily between these recently described planets, according to a study of the travel times between worlds.
Kepler Telescope Releases Trove of Data on Newfound Earth-Size Exoplanets
The planet-hunting observatory stared at the TRAPPIST-1 system for nearly three months
Scientists Spot Seven Earth-Sized Planets Orbiting a Nearby Star
This newly discovered solar system presents the best opportunity yet to study potentially habitable worlds, NASA scientists report