Is Kepler 452b humanity's best chance to find alien life?

Nasa and other scientists have discovered the 'closest twin to Earth' that's ever been found, bringing humans one step closer to finding where life is possible

A new planet has been discovered that has more in common with Earth than any exoplanet yet. And with the discovery by Nasa and other scientists of Kepler 452b plus 12 other possible "habitable" exoplanets, it may have become just a little more likely that humans will find extraterrestrial life on another planet.

Seth Shostak, senior astronomer and director of the Center for Seti Research at the Seti Institute, which was also involved in the discovery, said the revelations about the new planet have brought us one step closer to figuring out "what fraction of stars have a world that could support life".