Forbes: Betelgeuse Blew Its Top

Forbes headline: Betelgeuse Blew Its Top: Hubble Sees Red Supergiant Star ‘Bouncing’ After Catastrophic Upheaval

Did Betelgeuse explode already? If you remember Betelgeuse’s “great dimming” in late 2019 and early 2020 then you’ll know that the famous red supergiant star’s status has been a hot topic in astronomy of late.

Now new data from NASA’s Hubble Space Telescope shows that its unexpected dimming was most likely caused by its “blowing its top” in 2019, during which it lost a big part of its surface.

What scientists are called a surface mass ejection (SME) from Betelgeuse is something never before observed.