First Earth-Sized, Rocky Exoplanet Found
Friday, November 1, 2013 - 15:30
in Astronomy & Space
Kamuela, Hawaii - A team of astronomers has found the first Earth-sized planet outside the solar system that has a rocky composition like that of Earth. This exoplanet, known as Kepler-78b, orbits its star very closely every 8.5 hours, making it much too hot to support life. The results are being published in the journal Nature.