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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Black holes have an event horizon, an invisible one-way boundary at their edge that not even light is fast enough to escape.
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Paul M. Sutter, Scientific American, 1 Apr. 2025
That is kicking it backward, keeping the white dwarf clear of the event horizon.
—Robert Lea, Space.com, 13 Jan. 2025
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.
—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
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Paul M. Sutter, Scientific American, 1 Apr. 2025
That is kicking it backward, keeping the white dwarf clear of the event horizon.
—Robert Lea, Space.com, 13 Jan. 2025
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.
—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
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 14 Apr. 2025.
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