Yes, a dead star can keep exploding. A dead star called the “Tasmanian devil” has been releasing extreme explosions over minutes, rather than weeks to months. The light coming from the star could signal its transition into a stellar afterlife. 

A dead star could be a new type of stellar corpse. It could be active and doing things that we can detect. 

A star dies because it uses up all of its fuel. A star is made up of mostly hydrogen and helium. They fuse the hydrogen into helium, and that is what causes the large amount of energy to be expelled from the sun. 

A supernova typically lasts for several weeks to a few months. The initial explosion occurs within seconds, but the afterglow and energy release can be observed for an extended period

He adds that the mechanism behind this massive amount of energy is currently unknown. “But in this case, after the initial burst and fade, the extreme explosions just kept happening, occurring very fast – over minutes, rather than weeks to months, as is the case for supernovae

When a star dies, it explodes in a supernova. Supernovas are the biggest explosions humans have ever seen. They can be billions of times brighter than the sun and outshine entire galaxies. 

During a supernova, a star’s outer layers fall inward, crushing its neutron core. The core heats up to billions of degrees and explodes. The explosion releases large amounts of energy and material into space. 

The remaining mass of the star compresses to form a neutron star or black hole. The gas and dust expelled by the star can combine with other remains to form new stars, planets, and moons. 

Supernovas are the primary source of heavy elements in the universe. They create new atomic nuclei through a process called nucleosynthesis

Stars that don’t go supernova can collapse into black holes. This happens when the core collapses and the blast wave hits the dense material above. The star implodes instead of exploding. 

Stars that don’t go supernova can also become white dwarfs. 

Stars that are too big to go supernova can collapse into black holes immediately. For example, the sun is not massive enough to go supernova. 

Stars that are less massive than a certain limit will implode instead of exploding. The core that remains is called a neutron star, which is the densest stellar object known.

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