What is the name of the theoretical boundary around a black hole beyond which nothing can escape?
Category: Knowledge · Difficulty: hard
Hint: It's the point of no return in a black hole's gravitational field.
Answer
Event Horizon
Explanation
The event horizon is the boundary surrounding a black hole beyond which no information or matter can escape.
This is a hard knowledge riddle — a tricky one that takes a little thought. The answer is Event Horizon.
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