The closest rocky planet like our Earth has been discovered, 40 light years out – revolving close in to an M-dwarf star about 1/5th the size of our Sun. It was uncovered by the MEarth-South telescope array on Cerro Tololo in Chile. (Full Story)
Credit: Space.com / Animations & Imagery: Jonathan Irwin, Zach Berta-Thompson, NASA, ESO, W.M. Keck Observatory / Edited by @SteveSpaleta