Double Supernovae Discovered - Universe Today
Supernovae are rare events, only occurring once every 25-100 years in galaxy. So it came as a complete surprise when NASA’s Swift satellite turned up two supernovae going off at the same time in a galaxy – separated by only 16 days. Until now, astronomers have never seen a supernova going off in the galaxy … Continue reading "Double Supernovae Discovered"
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