Category: Everyday Science | Last updated: 2026-09-18
What is a black hole?
A) An empty area of space
B) A region where gravity is so strong that nothing, not even light, can escape
C) A hole in the ozone layer
D) A type of dark star
Explanation
A black hole is a region of spacetime where gravity is so extreme that nothing—not even light—can escape once it crosses the event horizon. They form when massive stars collapse.