Search results
Sep 7, 2024 · Event horizon, boundary marking the limits of a black hole. At the event horizon, the escape velocity is equal to the speed of light. Since general relativity states that nothing can travel faster than the speed of light, nothing inside the event horizon can ever escape beyond it, including light.
- The Editors of Encyclopaedia Britannica
In astrophysics, an event horizon is a boundary beyond which events cannot affect an observer. Wolfgang Rindler coined the term in the 1950s. [1] In 1784, John Michell proposed that gravity can be strong enough in the vicinity of massive compact objects that even light cannot escape. [2]
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...
Oct 3, 2024 · Overview. event horizon. Quick Reference. The surface of a black hole. For a non-rotating black hole, it is a spherical boundary at the black hole's Schwarzschild radius where the escape velocity becomes equal to the speed of light, so no events occurring within it can be seen from outside.
An event horizon is the boundary surrounding a black hole beyond which no light or other information can escape. It marks the point at which gravitational pull becomes so strong that escape velocity exceeds the speed of light.
Definition. The event horizon is the boundary surrounding a black hole beyond which no information or matter can escape. It represents the point of no return, where the gravitational pull becomes so strong that escape velocity exceeds the speed of light, making it impossible for anything that crosses this threshold to return.
People also ask
What is the event horizon?
What is an example of an event horizon?
What is an event horizon in astrophysics?
What is a black hole event horizon?
Can a black hole escape from the event horizon?
How do event horizons work?
Spacetime, as seen by an observer on the ship, has been divided by a curtain into two causally disconnected parts. This boundary is called an event horizon. Its existence is relative to the world-line of a particular observer. An observer who is not accelerating along with the ship does consider an event horizon to exist.
