The artist's concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone—a range of distance from a star where liquid water might pool on the ...

Technicians working inside the Astrotech Space Operations facility near NASA's Kennedy Space Center look over the Kepler spacecraft soon after it arrived in Florida in preparation for launch. [Read ...

MOUNTAIN VIEW, Calif. (KGO) -- Astronomers with NASA Ames in the Silicon Valley have just found the most Earth-like planet ever discovered orbiting a distant star. This photo above is an artist's ...

Kepler-186f is a rocky little world in the Goldilocks zone around its star. It's the fifth planet from its parent star, and yet it orbits at a distance comparable with Mercury's orbit around our sun.

Kepler 186f, the first Earthlike planet in a habitable zone with red-plant potential, marks 10 years since its discovery and highlights how alien life could look. Trump Cuts Millions After California ...

Not your grandfather's galaxy -- Our backyard -- A plurality of worlds -- What is a planet? -- The Kepler spacecraft -- 55 Cancri E : diamond world -- Haven : rogue planet -- Ice world -- Kepler 186f ...