The Fastest Star Ever Found Is Racing Around Our Galaxy’s Black Hole

Bedtime Astronomy

Astronomers have discovered S301, the fastest star ever observed in the Milky Way, racing around the supermassive black hole Sagittarius A* at an astonishing 25,000 km/s.

Its extreme orbit takes it closer to the black hole than any known star, offering scientists a rare opportunity to test Einstein’s relativity and measure the black hole’s spin.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

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Astronomers have discovered S301, the fastest star ever observed in the Milky Way, racing around the supermassive black hole Sagittarius A* at an astonishing 25,000 km/s.

Its extreme orbit takes it closer to the black hole than any known star, offering scientists a rare opportunity to test Einstein’s relativity and measure the black hole’s spin.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.
2026-09-04 19 min Transcript
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