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Mar 3, 2023 · The event horizon is the spherical outer boundary of a black hole loosely considered to be its "surface." It is the point, according to NASA, that the gravitational influence of the black...
It is no longer possible for the particle to escape, no matter the direction the particle is traveling. One of the best-known examples of an event horizon derives from general relativity's description of a black hole, a celestial object so dense that no nearby matter or radiation can escape its gravitational field.
Learn about the boundary of a black hole where nothing can escape, not even light. Find out how supermassive black holes are powered by accretion of matter and observed by radio telescopes.
- The Editors of Encyclopaedia Britannica
Learn about the structure and features of a black hole, such as the event horizon, the accretion disk, the corona, and the jets. Find out how gravity, light, and matter interact with a black hole and what makes it black.
Oct 27, 2021 · Learn how NASA's James Webb Space Telescope will join the Event Horizon Telescope collaboration to capture a sharper image of the supermassive black hole at the heart of our galaxy, Sagittarius A*. Find out how Webb's infrared data will help to understand the mysterious flares and the nature of black holes.
Apr 10, 2019 · The Event Horizon Telescope network has captured the ring-like structure of a supermassive black hole at the centre of galaxy M87. The image confirms the predictions of general relativity and reveals the deformation of space-time by gravity.
Jul 1, 2021 · Physicists at MIT and elsewhere have used LIGO data to observe the area law of black hole event horizons for the first time. The study provides evidence that the area of a black hole’s event horizon can never decrease, a fundamental principle derived by Stephen Hawking in 1971.
