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 ...

Kepler 186f, the first Earthlike planet in a habitable zone with red-plant potential, marks 10 years since its discovery and ...

Kepler-186f orbits an M dwarf star in the constellation Cygnus. More importantly, it's the first confirmed Earth-size, potentially habitable planet elsewhere in the universe. Eric Mack has been a CNET ...

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 ...

NASA's planet-hunting Kepler space telescope has just spotted Earth's cousin. Its next big find may be Earth's twin. On Thursday (April 17), astronomers announced the discovery of Kepler-186f, the ...

Scientists studying the planets dancing around distant stars have found big planets and small ones, burning-hot planets and icy-cold planets. But in their search of other solar systems, astronomers ...

Two of the earliest Earth-ish exoplanet finds are now more exciting targets in the search for habitable worlds beyond this rock. Eric Mack has been a CNET contributor since 2011. Eric and his family ...

Scientists analyzing data from the planet-hunting Kepler space telescope have chalked up another first, finding an Earth-size world orbiting in the habitable zone of its parent star, researchers ...

Earth, meet your distant cousin. The Kepler space telescope has turned up a potentially water-bearing world nearly as small as our planet. The planet is the smallest one found in any star’s habitable ...

LOS ANGELES (AP) -- Astronomers have discovered what they say is the most Earth-like planet yet detected -- a distant, rocky world that's similar in size to our planet and exists in the Goldilocks ...

As the highly successful Kepler spacecraft ends its 9-year mission, humanity can look back at an instrument that greatly expanded our knowledge of planetary systems around other stars and discovered ...

NASA’s Kepler spacecraft has discovered a “cousin” of Earth 1,400 light-years away. The exoplanet Kepler 452b orbits a sunlike star at about the same distance as Earth orbits the sun, scientists ...