@natastron.nature.com's beautiful September cover shows the first ever image of a dying start that exploded twice on it's way to become a type 1a supernova. I got to write about this really cool discovery this summer for @sciencenews.bsky.social.
www.sciencenews.org/article/supe...
The image offers the first evidence for a previously unconfirmed origin story of type 1a supernovas.
Beautiful new cover at Nature Astronomy's
Concentric shells of highly ionized calcium and sulfur in the ejecta of a type Ia supernova provide evidence of the double-detonation scenario for exploding sub-Chandrasekhar-mass white dwarfs. 🧪🔭
www.nature.com/natastron/vo... @natastron.nature.com
