The basics
What is a black hole?
A black hole is a region where gravity is so intense that nothing — not even light — can escape once it crosses the event horizon.
Space · Black Holes
Black Holes: Where Gravity Traps Light
Gravity so strong light can’t escape — event horizons explained.
Space / Black Holes
Black Holes — what curious minds want to know
What black holes are, how we find them, and what an event horizon means.
c
Even light can’t escape
2019
First black hole image
Stellar
Common type
Galaxy cores
Supermassive homes
Finding them
How do we “see” black holes?
We watch what happens around them — swirling hot gas, bent starlight, and ripples in spacetime called gravitational waves.
Black Holes FAQ
No nearby black hole is threatening Earth. They’re not cosmic vacuum cleaners roaming the neighborhood.
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