What happens when Betelgeuse blows its top?

Source: Freerepublic.com· Scientific American· August 16, 2026

This artist’s concept shows the red supergiant star Betelgeuse and a companion star orbiting within the supergiant’s tenuous outer atmosphere. Artwork: NASA, ESA, Elizabeth Wheatley (STScI); Science: Andrea Dupree (CfA) Betelgeuse has always been something of…

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