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Gravity

Gravity

Black hole ‘subrings’ could be seen by putting a telescope on the Moon

30 Mar 2020 Hamish Johnston
Black hole rings
Rings around a black hole: illustration showing the n=0,1 and 2 rings. (Courtesy: George Wong (UIUC) and Michael Johnson (CfA))
Adding a space telescope to the earthbound Event Horizon Telescope (EHT) should reveal the delicate

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Hamish Johnston is an online editor of Physics World
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