Sit back and watch a Supernova explosion, 50 million light years away.
The actual explosion happened 50 million years ago but images of the spectacular event began arriving 4 years ago. Supernova 2015F was discovered in nearby spiral galaxy NGC 2442 by Berto Monard in 2015 March and was unusually bright, billions of times the luminosity of our Sun -- enough to be seen with only a small telescope. The pattern of brightness variation indicated a Type Ia supernova -- a type of stellar explosion that results when an Earth-size white dwarf gains so much mass that its core crosses the threshold of nuclear fusion, possibly caused by a lower mass white-dwarf companion spiraling into it. The Meathook Galaxy is the lucky cosmic island hosting it.
Video Credit & Copyright: Changsu Choi & Myungshin Im (Seoul National University)
Source: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)