More than half a century ago, Sir Roger Penrose envisioned a scenario in which energy could be extracted from a black hole spinning at extreme speeds. He proposed that a particle entering its ergosphere—a region of space dragged around by a rotating black hole—could split into two. One part cou...

Source: [Phys.org](https://phys.org/news/2026-07-synthetic-rotation-black-hole-energy.html)

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