event horizon
noun
: the surface of a black hole : the boundary of a black hole beyond which nothing can escape from within it
Examples of event horizon in a Sentence
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Such an axis could be naturally explained by the theory that our universe was born on the other side of the event horizon of a black hole existing in some parent universe.
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Robert Lea, Space.com, 13 Mar. 2025
Because black hole gravity is so strong, anything that takes place within the event horizon can’t ever be observed from outside the black hole, according to relativity.
—Lyndie Chiou, Quanta Magazine, 24 Feb. 2025
Astronomers believe the flares are coming from the inner edge of the accretion disk just beyond the black hole’s event horizon, or the area around a black hole where the pull of gravity is so strong that not even light can escape, according to NASA.
—Ashley Strickland, CNN, 19 Feb. 2025
Any matter, light, or radiation crossing the edge of this trap, known as the event horizon, disappears forever.
—IEEE Spectrum, 30 Jan. 2020
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Robert Lea, Space.com, 13 Mar. 2025
Because black hole gravity is so strong, anything that takes place within the event horizon can’t ever be observed from outside the black hole, according to relativity.
—Lyndie Chiou, Quanta Magazine, 24 Feb. 2025
Astronomers believe the flares are coming from the inner edge of the accretion disk just beyond the black hole’s event horizon, or the area around a black hole where the pull of gravity is so strong that not even light can escape, according to NASA.
—Ashley Strickland, CNN, 19 Feb. 2025
Any matter, light, or radiation crossing the edge of this trap, known as the event horizon, disappears forever.
—IEEE Spectrum, 30 Jan. 2020
See All Example Sentences for event horizon
Cite this Entry
“Event horizon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/event%20horizon. Accessed 31 Mar. 2025.
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