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NASA's Goddard Space Flight Center

Citizen Scientist Finds Ancient White Dwarf Star Encircled by Puzzling Rings

19 Feb 2019, 15:30 UTC
Citizen Scientist Finds Ancient White Dwarf Star Encircled by Puzzling Rings NASA’s Goddard Space Flight Center/Scott Wiessinger

A volunteer working with the NASA-led Backyard Worlds: Planet 9 project has found the oldest and coldest known white dwarf — an Earth-sized remnant of a Sun-like star that has died — ringed by dust and debris. Astronomers suspect this could be the first known white dwarf with multiple dust rings.

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