Question

What is supernova??!?​

Answer 1

Supernova is the explosion of a star. It is the largest explosion that takes place in space.

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Answer 2

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Supernova, plural supernovae or supernovas, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level. The term supernova is derived from nova (Latin: “new”), the name for another type of exploding star.