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How do black holes form?
Quick answer
A black hole forms when a massive star runs out of fuel and collapses under its own gravity. The matter is crushed into an incredibly dense point, creating gravity so strong that not even light can escape past its boundary, the event horizon.
Step by step
- They form when a giant star collapses at the end of its life.
- Matter is crushed into an extremely dense point.
- Gravity becomes so strong even light can't escape.
- The point of no return is called the event horizon.
People also ask
How do black holes form?
A massive star runs out of fuel and collapses, crushing its core into an object with inescapable gravity.
What is the event horizon?
The boundary around a black hole beyond which nothing, not even light, can escape.
Can black holes be seen?
Not directly, but we detect them by their gravity's effect on nearby matter and light.
Part of the guide: Space & Astronomy →