The supernova that wasn’t: A tale of three cosmic eruptions

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Long-term observations with the Hubble Space Telescope revealed that Eta Carinae, a very massive star system that has puzzled astronomers since it erupted in a supernova-like event in the mid 19th century, has a past that’s much more violent than they thought. The findings help rewrite the story of how this iconic and mysterious star system came to be and present a critical piece of the puzzle of how very massive stars die.
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