Michio Kaku speaks with Fox News about the Recent Discovery of an Earth Like Planet in Outer Space! A new member in a family of planets circling a red dwarf star 20 light-years away has just been found. It's called Gliese 581g, and the 'g' may very well stand for Goldilocks. Gliese 581g is the first world discovered beyond Earth that's the right size and location for life.