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: ...

After nearly a decade of groundbreaking exploration, NASA’s Kepler Space Telescope concluded its mission, leaving a lasting legacy in the search for exoplanets. The spacecraft, which confirmed the ...

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 ...

NASA's Kepler Space Telescope has discovered 2,784 distant alien worlds. While some orbit within habitable zones and look ...