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Stunning image of a supernova reveals a dead star that exploded twice

Pelican Press

By Pelican Press,
in World News

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A white dwarf star around 160,000 light years away appears to have exploded twice – the first evidence astronomers have seen that such supernovae involve a double detonation. White dwarf stars are dead stars that were once like our sun, but have exhausted their nuclear fuel, leaving an Earth-sized core. If a white dwarf draws in material from a nearby star, its mass can reach a point where it…

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