What is the general term for the spectacular explosion marking the catastrophic death of a massive star?

Answer

Supernova

The explosion of a massive star, such as a red supergiant, is universally termed a supernova, representing a catastrophic stellar death.

What is the general term for the spectacular explosion marking the catastrophic death of a massive star?

#Videos

Why Do Some Red Giant Stars Explode As Supernovae? - YouTube

astronomystarstellar evolutionexplosionred giant