3 years ago
A rare glimpse of a star before it went supernova defies expectations
A rare glimpse of a star before it exploded in a fiery supernova looks nothing like astronomers expected, a new study suggests. Images from the Hubble Space Telescope reveal that a relatively cool, puffy star ended its life in a hydrogen-free supernova. Until now, supernovas without hydrogen were thought to originate only from extremely hot, compact stars.
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