absolute most massive stars will die in a spectacular supernova explosion
The rarest light elements in the Universe
Ethan Siegel

I did never find a complete, detailed explaination of why and how stars “explode”. Most description give a lot of details about stars builds up and ignite, a lot about the elements they create, and in almost every description they just explode at the end. Why is that ? What is the two differents processes that leads to stellar nebulaes and supernovaes ?

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