Stars are delicate machines, using perfect balances of gravity. But when gravity wins and a star explodes, a supernova emitting tremendous energy appears. About 400 years ago there formed the latest supernova in the Milky Way. That's a long time ago! We've decided to examine the starry sky and check which of the stars are likely to go BOOM some time soon. And the list isn't short! Here're the most likely stars to go supernova in our galaxy.