Astrophysicists discover solar system with seven exoplanets orbiting a star in a similar configuration to our own.
NASA figures out a way to put Kepler back to work on its original mission in the search for habitable planets.
After studying data from NASA’s Kepler mission, astronomers determine that habitable planets are not rare.
Kepler-78b a mysterious alien exoplanet planet that should, theoretically, not be able to exist.
Here's one engineer's take on how we remake exoplanets in the Earth's image.
NASA astronomers produce first cloud map image of a planet that exists outside of our solar system.
The international body charged with helping to establish names for new planets has decided to open up the process to the public.
The first aliens could be little red plants, not little green men.
Determining the color of an alien world from light-years away isn't easy, but the Hubble Space Telescope has managed to do it.
Gliese 667 has three stars and three potentially habitable worlds. Our solar system has just been trumped.