Evidence for supernovas near Earth
Wednesday, August 27, 2014 - 06:30
in Astronomy & Space
Once every 50 years, more or less, a massive star explodes somewhere in the Milky Way. The resulting blast is terrifyingly powerful, pumping out more energy in a split second than the sun emits in a million years. At its peak, a supernova can outshine the entire Milky Way.