What are 3 facts about Betelgeuse?

Answer 1

1. It is a red supergiant.
2. It will explode as a supernova
3. It might have already done so, as it is 640 light years from us.

Answer 2

1. Betelgeuse is a red supergiant star located in the constellation of Orion.
2. It is one of the largest stars known, with a diameter estimated to be around 1,000 times that of the Sun.
3. Betelgeuse is nearing the end of its life cycle and is expected to explode in a supernova in the relatively near astronomical future.