What causes a star to become a supernova?

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Anonymous 2 years 2019-06-15T18:04:40+00:00 1 Answer 172 views 0

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    Very massive stars can undergo core collapse when nuclear fusion suddenly becomes unable to sustain the core against its gravity; this is the cause of all types of supernova except type Ia. The failure may cause violent expulsion of the outer layers of the star resulting in a supernova.

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