I wrote this article together with the Danish astronomer Bertil F. Dorch, who in 2002 proposed that the magnetic activity inside Betelgeuse could lead to observable effects on the surface. Recently, in June 2017, ALMA observed asymmetries in shape and color on the surface of Betelgeuse.

Read the popular scientific article on videnskab.dk‘s website (in Danish).

We also created a short video for YouTube (in Danish)

Betelgeuse. Photo: ESO/P. Kervella.