Questions tagged [event-horizon]

An event horizon is the notion of a distance away from the gravitational center of mass of a black hole. Observers outside of the event horizon can escape however any object including light which approaches a black hole and crosses the event horizon cannot escape the gravitational pull and are consumed.

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If two black hole event horizons overlap (touch) can they ever separate again?

Hypothetical question based on my understanding that two event horizons that overlap (touch) can't ever separate again: Imagine a 1 billion solar mass black hole (so the event horizon is massive and ...