The oldest known planet capable of harboring life has been discovered by astronomers, according to Space.com. The exoplanet, Kapteyn b, is pretty old — about 11.5 billion years, compared to Earth's age of 4.5 billion years — leading scientists to wonder what kind of life could have evolved on it over such a long period of time. And at a distance of 13 light-years away, the planet, which orbits a nearby red dwarf known as Kapteyn's Star, is close to Earth, in galactic terms at least.
