XRISM Delivers Sharpest X‑ray View of Rapidly Spinning Supermassive Black Hole
First XRISM observations of the active galactic nucleus MCG‑6‑30‑15 reveal the most precise X‑ray signatures yet of a rapidly spinning supermassive black hole, mapping relativistic effects and ionized outflows that influence host‑galaxy structure. Results provide new constraints on extreme gravity and AGN‑driven feedback.