Betelgeuse is a dying red supergiant, and one day its final explosion could light up Earth’s sky. This story explores what is ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers uncover how passing stars and exploding giants shaped the gas around our solar system and may still shield Earth today ...

Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but they came close enough to leave a permanent mark on the thin mist of gas that ...