A newly-discovered black hole, dubbed the "unicorn," is unusually small and may be the closest to Earth found so far. It may also shed new light on how stars eveolve, and how they die. My story for National Geographic.
A newly-discovered black hole, dubbed the "unicorn," is unusually small and may be the closest to Earth found so far. It may also shed new light on how stars eveolve, and how they die. My story for National Geographic.