How does a star become a supernova or a black hole? How does the star decide which one to turn into?
Asked by: Mudita Upman

Answer
Stars are sustained by the nuclear fusion reactions taking place in their cores. For stars on the main sequence, such as our own Sun, this mostly involves combing hydrogen to form helium. The energy that these reactions produce is enough to support their mass against its own gravity.

Wrong. Stars are not fusion reactors. Stars are stable AC generators renewing its own energy. All scientists lied/mistaken.