Hubble Spies Stellar ‘Ghost’ Wandering the Milky Way Galaxy
For the first time, the Hubble Space Telescope has detected a lone object drifting through our Milky Way galaxy—the invisible, ghostly remains of a once radiant star. When stars massive enough to dwarf our sun die, they explode in a supernova and the remaining core is crushed by its own gravity, forming a black hole. […]