Definition, Meaning & Synonyms
event-horizon
noun
/ɪˈvɛnt haɪˈzɔrn/
Definition
The event horizon is a boundary in spacetime beyond which events cannot affect an outside observer.
Examples
- The event horizon of a black hole marks the point of no return.
- For an observer falling into a black hole, the event horizon is an important concept to understand.
- Light emitted from objects beyond the event horizon cannot reach an outside observer.
Meaning
It is the point surrounding a black hole where the gravitational pull is so strong that nothing, not even light, can escape from it.
Synonyms
- boundary of no return
- limit of escape
