How hot is a supernova

A supernova is an extremely powerful and explosive event that occurs when a star runs out of nuclear fuel and collapses under its own gravitational force, releasing an enormous amount of energy in the process. This energy is so immense that it can briefly outshine an entire galaxy.

The temperatures involved in a supernova are incredibly high, reaching tens of millions of degrees Celsius (or Kelvin) in the core of the collapsing star. This is hot enough to trigger a process called nuclear fusion, where atomic nuclei collide and merge to form heavier elements. The fusion process releases even more energy in the form of light and heat.

In the outer layers of the star, temperatures during a supernova can reach several million degrees Celsius (or Kelvin), which is still incredibly hot by human standards. However, it’s worth noting that these temperatures are only sustained for a brief period of time before the star’s energy is expended and it begins to cool.

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