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News Physics

General relativity caught in action around black hole

Wobbling disk of orbiting debris shows yanking and twisting of spacetime

black hole H1743-322

RELATIVITY TEST BED  The black hole H1743-322 is corralling material from a star to form a disk, similar to the setup in this illustration. Researchers studied X-rays from the disk to detect an effect called frame dragging.

L. Calçada/ESO

By Andrew Grant

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