A record-breaking star could reveal how the Milky Way’s giant black hole spins

The star could offer a new test of black hole physics and Einstein’s gravity

An illustration of stars orbiting the Milky Way's central, supermassive black hole

Meet star S301 (orange dot next to illustrated black hole). It’s the fastest-moving star in the galaxy, travels closest to the Milky Way’s supermassive black hole and has the potential to probe black hole physics and general relativity.

© MPE

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