Supernova star ejection

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Artist's impression of a supernova ejecting its star. The material ejected by the supernova will initially expand very rapidly, but then gradually slow down, forming an intricate giant bubble of hot glowing gas. Eventually, the charred remains of the white dwarf that exploded will overtake these gaseous layers, and speed out onto its journey across the Galaxy.

University of Warwick / Mark Garlick

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