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Gravity

Gravity

Black hole is hairless, reveals analysis of gravitational waves

17 Sep 2019 Hamish Johnston
Merging black holes
Come together: artist's impression of the GW150914 merger of two black holes. (Courtesy: NASA)
The no-hair theorem, which says that black holes only have three defining properties, has been teste

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Hamish Johnston is an online editor of Physics World
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