Betelgeuse Probably Dimmed Because of Enormous Starspots

A few months ago we all watched as Betelgeuse dimmed. Between October 2019 and 22nd of February 2020 the star’s brightness dropped by a factor of about three. It went from magnitude 0.5, and from being the tenth-brightest star in the sky, to magnitude 1.7. Naturally, we all wondered what was happening. Would it go …