Astronomers have determined that the planet Kepler-10c, discovered by NASA’s Kepler Space Telescope back in 2011 and thought to be a gas giant, is actually solid, making it an unprecedented ...

A new planetary member of the Kepler-10 solar system was announced today. Using data from NASA’s Spitzer Space Telescope, members of the Kepler science team confirmed a new planet, dubbed Kepler-10c.

Rooting around extrasolar planetary systems like paleontologists on a dinosaur dig astronomers have found a remarkable new planet 17 times more massive than Earth. Improbably, it's made of rock.

NASA astronomers recently discovered a new class of rocky planet measuring 2.3 times the size of Earth and 17 times its diameter. Dubbed “mega-Earth,” this type of planet challenges all previous ...

The Kepler Telescope team has found a new rocky planet, one they describe as a “scorched, molten Earth.” The planet is about 2 times the size of Earth, and is very close to the Sun-like star Kepler-10 ...

Determining which small exoplanets have stony-iron compositions is necessary for quantifying the occurrence of such planets and for understanding the physics of planet formation. Kepler-10 hosts the ...