event horizons

Black hole edges

Event horizons is the plural of event horizon, a boundary in space beyond which nothing—not even light—can escape.

The term comes from physics, describing the edge of a black hole: Once you cross the event horizon, there's no coming back.

Figuratively, it marks a point of no return in any situation: We're past the event horizon on this project.

Related

edge · point of no return · no escape · falling in · beyond the veil · time dilation · geodesics · escape velocity · boundary · quantum gravity · gravitational waves · shadow · tidal forces · redshift · general relativity · stellar · escape · spaghettification

Categories
Opposites
escapability

event horizonsopen space

Unobstructed outdoor area

free space · escape routes · gateways · portals

information accessibility

event horizonsobservable universe

Region light has reached us from

photospheres

gravitational influence

event horizonsintergalactic space

Region between galaxy clusters

gravity wells

Family

event, prevent, horizon, events, eventually, prevented, prevention, eventful, prevents

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Abstract · Rated G