Black holes, the great gravitational beasts left behind when stars collapse in a supernova, are some of the weirdest and most exotic objects in the universe. But even among these bizarre beasts, some black holes are weirder than others. The youngest black hole ever observed -- just 31 years old -- was announced today, but it's just the latest in a long line of black hole superlatives.

Youngest

The 31-year-old remains of supernova SN 1979c make up the youngest known black hole.

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