Could Life Have Emerged on Earth’s Near Twin?

Yesterday, NASA’s Kepler team announced the discovery of the most Earth-like planet yet . It may be larger than Earth, but this exoplanet is situated firmly within its star’s habitable zone—and it’s been there for a while. So could it actually sustain life? Here’s What We Know So Far. Kepler 452b is located 1,400 light-years from our Sun.