Kepler-452b: Earth's Older Cousin Is A Bit Bigger And Located Where Alien Life Is Possible NASA's Kepler space telescope has discovered an exoplanet with nearly the same size as the Earth in the habitable zone of a sun-like star. Dubbed Kepler-452b, the new found planet orbits around a sun-like star 1.5 billion years older than the sun. by Rhodi Lee