Multiple choice general knowledge

What is a supernova

  1. An exploding star

  2. A clever astronomer

  3. Home to Superman and his friends

  4. A star 100 times the size of our own sun

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A supernova is the explosive death of a star that occurs when a star exhausts its nuclear fuel and collapses under its own gravity, causing a massive explosion. This explosion can outshine an entire galaxy for a short period and disperses heavy elements into space.