Two of the Exoplanets Closest to Earth Don’t Actually Exist

by Xaq Rzetelny July 10 2014

Two exoplanets, once considered excellent candidates in the search for life elsewhere in the Universe, do not exist, according to a new study in the journal Science. Both non-planets, Gliese 581d and 581g, were thought to be part of the Gliese 581 star system, located only 20 light-years away.