Two-faced star with helium and hydrogen sides baffles astronomers: https://theguardian.com/science/2023/jul/19/two-faced-star-with-helium-and-hydrogen-sides-baffles-astronomers-janus

Credit animation : K. Miller, Caltech/IPAC

See also:
➡️ the Nature paper by Ilaria Caiazzo and co-authors: https://nature.com/articles/s41586-023-06171-9
➡️ the Keck Observatory Science News: https://keckobservatory.org/janus

#universe #astronomy #astrophysics #astrodon #dwarf #star #dwarfstar #janus #whitedwarf #stars

Two-faced star with helium and hydrogen sides baffles astronomers

White dwarf nicknamed Janus could be in transition from one element dominating at its surface to the other

The Guardian
@pomarede I'm very far from an astronomer and I don't at all understand how that could be possible.
Will be looking forward to the youtube videos explaining it (at a level I can understand) from Anton Petrov and/or Dr. Becky.