VIDEO: What Would We See If Betelgeuse Went Supernova?

In late 2019, Betelgeuse, the red supergiant on the shoulder of Orion, did something terrifying. It began to dim. Normally, Betelgeuse is the 10th brightest star in the night sky. But over a few months, it dropped to about 35% of its usual brightness, falling out of the top 20. It was the faintest it had been in over a century of observations. The astronomy community went wild. Many speculated that the star was about to go supernova. When a massive star runs out of fuel, it can collapse and expl