Black Holes

What Is a Black Hole?

A black hole is a place in space where gravity is super strong.
Gravity is the force that pulls things together.
In a black hole, gravity is so strong that even light cannot escape.
That is why we call it “black” – we cannot see inside it.
Black holes can be big or small, but all of them are very dense.

How Does a Black Hole Form?

Most black holes start as big stars.
When a massive star runs out of fuel, it can no longer hold itself up.
The star collapses and its core becomes extremely compact.
If the core is heavy enough, it turns into a black hole.
Sometimes, two black holes can join together and make an even bigger one.

What Happens Inside?

The edge of a black hole is called the Event Horizon.
Crossing the event horizon means you cannot get out again.
Inside, the rules of physics get very strange.
Scientists think there is a point called a Singularity where all the mass is squeezed into a tiny spot.
We cannot see the singularity, and we do not fully understand it yet.

Fun Facts

• The biggest black holes are called Super‑massive black holes. They sit in the centers of many galaxies, including our own Milky Way.
• A black hole can be as small as a single atom but still have the mass of a mountain.
• Even though nothing can escape from inside, black holes can still affect nearby stars and gas with their strong gravity.
• Astronomers find black holes by watching how they pull on nearby objects, not by looking at the black hole itself.

Black holes may sound scary, but they are just a natural part of our universe.
Learning about them helps scientists understand how space works.
Who knows? Maybe one day you will discover a new black hole!