Dancing grand unlit holes abolish on cue

Dancing grand unlit holes abolish on cue

Media playback is unsupported on your device Media captionArtwork of OJ 287: The smaller black hole punches through the accretion disc twice every 12 years Astronomers have been able to test key consequences of Einstein’s theories by studying the way a couple of black holes move around each other.One of these objects is a true…

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