A supernova is an astronomical event that occurs during the last stellar
evolutionary stages of a massive star's life, whose dramatic and catastrophic
destruction is marked by one final titanic ...
A supernova is the explosion of a star -- the largest explosion that takes place in
Apr 23, 2013 ... GRB 101225A, aka the 'Christmas burst,' was an strangely long-lasting gamma-
ray burst. The distance was not measured; astronomers ...
Feb 13, 2017 ... The first moments of a supernova — the spectacular explosion that marks the
death of massive stars — have been spotted for the first time, ...
Feb 14, 2017 ... Observations catch a supernova three hours after it exploded. The star may have
shed a shell of material within 100 days of exploding.
A supernova is an explosion of a massive supergiant star. It may shine with the
brightness of 10 billion suns! The total energy output may be 10<sup>44</sup> joules, ...
Jan 27, 2014 ... The brilliant point of light is the explosion of a star that has reached the end of its
life, otherwise known as a supernova. Supernovas can briefly ...
Feb 13, 2017 ... Scientists aren't sure why or how these stars detonate, but recent observations of
a six-hour-old supernova are shedding light on the star's final ...
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This energy blows the outer layers of the star off into space in a giant explosion
called a supernova (plural: supernovae.) The ball of neutrons left behind is called