images

Betelgeuse and dark cloud

by

Ron Miller/Novapix

Reference

a-eto01-00053

Date

2021-04-03

Artist's illustration of a huge dust cloud blocking light from the supergiant star Betelgeuse, as seen from Earth. A hot blob of plasma was ejected from the star's surface, expelled gas rapidly expanded outward and cooled to form an enormous cloud of obscuring dust grains.