Kepler-10c rocky exoplanet

Mega-Earth Kepler-10c strange new rocky exoplanet, just discovered by astronomers, has about 17 times as much mass as our planet.    Artist’s impression of “mega-Earth” Kepler 10c. Credit: David A. Aguilar (CfA)

Spotted by NASA’s Kepler space telescope, the exoplanet Kepler-10c, spins around its star every 45 days, is about 2.3 times larger and has 17 times as much mass as Earth.

That means it must be “filled with rock and other materials much heavier than hydrogen and helium.”

The Harvard-Smithsonian Center for Astrophysics’s (CfA) Dimitar Sasselov, said in a webcast press conference on June 2:

“Kepler-10c is a big problem for the theory. I was wrong that old stars do not have rocky planets, which has consequences about the Fermi Paradox. The Fermi Paradox, simply put, refers to the question of why we can’t see civilizations since they are assumed to have spread quite a ways since the universe was formed.”

via universetoday

source arVix