Such massive stars put out more than 100 times as much energy as our Sun. Massive stars burn their nuclear fuel at drastically enhanced rates to support their high energy output. As a result their lives last only a few million years compared to the Sun's few billions of years. They end in a spectacular death explosion, a supernova , like the star which exploded in 1987 as seen above. Supernovae may leave behind imploded stellar cores which form neutron stars or black holes .
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