Was a well-known supernova an alien invader from one other galaxy?
A composite picture of the remnant of Kepler’s SupernovaNASA/CXC/SAO/D.Patnaude Probably the most well-known exploding stars ever ...
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A composite picture of the remnant of Kepler’s SupernovaNASA/CXC/SAO/D.Patnaude Probably the most well-known exploding stars ever ...
Read more