For this dead star, 72 years is a single Earth day

Astronomers have discovered a remarkable binary system in which a dead white dwarf star orbits a tiny stellar companion 72 times in 24 hours. The observation could help explain how tiny stars are born.

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Albert Einstein ,Tsinghua University ,Ma Huateng Telescope For Survey ,Tsinghua University Ma Huateng Telescope ,White Dwarf ,Binary Star System ,Ubdwarf Star ,Binary System ,