If the accretion disk around a black hole emits X-rays outside the event horizon, the X-rays can escape.

Name: If the accretion disk around a black hole emits X-rays outside the event horizon, the X-rays can escape.
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X-rays can escape from outside the event horizon of a black hole if they are emitted from the accretion disk surrounding it. This is because the accretion disk is outside the event horizon and not subject to the extreme gravity that prevents anything within the event horizon from escaping.

If the Accretion Disk Around a Black Hole Emits X-Rays