[Por_sha911]

I used supernova because people have heard the word and understand the idea. The term can be used is a broad sense of the word.

A supernova is the explosion of a star. In an instant, a star with many times the mass of our own Sun can detonate with the energy of a billion suns. And then, within just a few hours or days, it dims down again. Some explode into a spray of gas and dust, while others become exotic objects like neutron stars or black holes.

https://www.universetoday.com/46644/supernova/

Technically, any star can explode at the end of its stellar lifespan. A red giant is also a possibility and either way it will be a bad day for planet earth.