TRAPPIST-1 System Has 7 Earth-Sized Exoplanets, 3 In Habitable Zone | Video

An dwarf star named TRAPPIST-1, which is located about 39 light-years from Earth, harbors more planets than previously observed. Climate models suggest that the three closest to the star would likely be too hot for liquid water to exist “on any more than a small fraction of their surfaces,” according to the European Southern Observatory. The furthest planet is too cold for water but temperatures may be just right on the other three planets. Full Story: https://goo.gl/HUujrk Credit: ESO