Mon Prof Augmenté
A black hole
A black hole is a place in space where a huge amount of matter is packed into a very small space. Its gravity is so strong that it pulls in everything nearby, and even light cannot get away.
This picture is part of the full library
Every lesson is open to everyone for 7 days after it is published. This one came out on September 18, 2026: its text stays readable here, and its picture opens with a subscription.
The app is free. A subscription opens every lesson, in every school year.
In the picture
- The black sphere: the tightly packed matter whose gravity pulls everything toward it
- The light line bending down: light caught and pulled in, so it cannot travel away
- The glowing orange ring: hot dust and gas spinning around the dark sphere
Examples
- A whirlpool in a river that pulls floating leaves down under the water
- A heavy ball on a stretched rubber sheet, dipping it so marbles roll toward it
Key takeaways
- The gravity of a black hole is so strong that not even light can escape it.
- Some black holes form when very big stars run out of fuel and collapse.
Carry on in the app
Three questions on this lesson. It has left the free week, so its quiz is for subscribers.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
Get the app
Free app, optional subscription
App Store Google Play
