Planet found floating alone beyond the solar systemAstronomers said Wednesday they have found a lonely planet outside the solar system floating alone in space and not orbiting a star. Oct 10, 2013
NASA's Voyager 1 becomes first spacecraft to leave our solar systemNever before has a human-built spacecraft traveled so far. NASA's Voyager 1 probe has now left the solar system and is wandering the galaxy, US scientists said Thursday. Sep 12, 2013
