This Planet Just Outside Our Solar System Is 'Potentially Habitable'

It's not exactly close — 25 trillion miles from Earth, say the scientists who spotted it. But that might be near enough for further exploration. It's about Earth's size, with mild temperatures.
Read more: http://www.npr.org/sections/thetwo-way/2016/08/24/490947403/this-planet-just-outside-our-solar-system-is-potentially-habitable?source=Snapzu