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Strange white dwarf switches 'on' and 'off' in front of astronomers

22 Oct 2021, 16:18 UTC
Strange white dwarf switches 'on' and 'off' in front of astronomers NASA/ESA/K. Sahu (STScI)

A spacecraft that usually seeks new worlds saw a white dwarf suddenly switch "off" with a swift drop in brightness. Then it switched back on again.

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