Ergosphere
Ergosphere
Region outside of a rotating black hole's event horizon.
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Readers' pathsAug 2026 – Oct 2026
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Penrose process
Hypothetical mechanism for extracting energy from rotating black holes.
17%
Rotating black hole
Black hole which possesses angular momentum.
15%
Event horizon
Region in spacetime from which nothing can escape.
9.9%
Kerr metric
Exact solution for the Einstein field equations.
9.1%
Oberth effect
Type of spacecraft maneuver.
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Schwarzschild radius
Radius of the event horizon of a Schwarzschild black hole.
5.4%
Spheroid
Surface formed by rotating an ellipse.
4.8%
Plumb bob
Weighted line used as a vertical reference.
2.6%
Gamma-ray burst
Flash of gamma rays from a distant galaxy.
1.2%
Gravitoelectromagnetism
Analogies between Maxwell's and Einstein's field equations.
0.92%
Readers come from
Share of the 2,745 readers arriving from another article
Interstellar (film)
2014 film by Christopher Nolan.
36%
Penrose process
Hypothetical mechanism for extracting energy from rotating black holes.
15%
Rotating black hole
Black hole which possesses angular momentum.
9.1%
Black hole
Compact astronomical body.
5%
Kerr metric
Exact solution for the Einstein field equations.
4.5%
Blandford–Znajek process
Explanation for how quasars are powered.
4.4%
Event horizon
Region in spacetime from which nothing can escape.
4.3%
Gravity assist
Space navigation technique.
0.73%