If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have ...

NASA's planet-hunting mission, the Kepler Space Telescope, has just discovered Kepler-452b, a planet that scientists are calling "Earth 2.0." Scientists said in a press conference Thursday that they ...

A hazy, ultra-light “super-puff” planet, Kepler-51d, is hiding its secrets and challenging how scientists understand planet formation.

Scientists have discovered 45 "Earth-like" planets which could potentially harbour life. Researchers at the Carl Sagan ...

Learn more about the Kepler-51 star system and some of the ''oddball" planets that reside there.

Kepler-51d is a giant, ultra-light “super-puff” planet wrapped in an unusually thick haze that’s blocking scientists from ...

An artistic concept of Kepler-452b, Earth's Bigger, Older Cousin.NASA/Ames/JPL-Caltech/T. Pyle It’s not easy being Earth. In order to become the vibrant ...

Relative sizes of the newly discovered habitable-zone planets and Earth. Left to right: Kepler-69c, Kepler-62e, Kepler-62f and Earth (except for Earth, these are artists' renditions). Image credit: ...

CAPE CANAVERAL, Fla. -- An eighth planet has been found in a faraway solar system, matching our own in numbers. Even more amazing, machines and not humans made the discovery. NASA joined with Google ...

There's something wrong with Kepler, the sun-orbiting spacecraft at the center of NASA's mission to identify Earth-like, habitable planets orbiting other stars. And if the space agency's engineers can ...