This white dwarf star has two “faces”

Ars Technica
By Jennifer OuelletteJul 20, 2023, 2:12 pm141 pts
Astronomers have discovered an unusual blue-tinted white dwarf star with two distinct "faces": one side is hydrogen and the other side is helium, according to a new paper published in the journal Nature. Naturally they nicknamed the star Janus, after the two-faced Roman god of duality and transition. As…

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