Nature, Published online: 19 August 2026; doi:10. 1038/s41586-026-10894-w The discovery of the fast-orbiting star S301 near Sagittarius A* offers a promising new probe of the central black hole spin of the Milky Way through relativistic orbit measurements.

Source: [Nature](https://www.nature.com/articles/s41586-026-10894-w)

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