Mystery #2Tier 2-3stars / space
What is a supernova?
Once in a while, a single star suddenly blazes so brightly it can outshine an entire galaxy of billions of stars, for a few weeks, then fades. This is a supernova. What could make a star explode like that?
Your guess
What's your hunch about what makes a giant star blow up in a supernova?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.