
A hitherto unknown planet has been located orbiting Proxima Centauri, the star closest to the sun.
What Happened: According to a Space.com report, astronomers found evidence of a planet estimated to be 25% as massive as the Earth. The newly discovered planet, which has been named Proxima d, is the third planet in orbit around Proxima Centauri, a red dwarf star that is 4.2 light years from our solar system.