Black Hole

What is a Black Hole?

✅ Definition:

A black hole is a region in space where gravity is so strong that nothing can escape it — not even light.

⚠️ Because no light can escape, we cannot see black holes directly — they appear “black” against the background of space.

🌀 How do black holes form?

Most black holes form when a very massive star runs out of fuel, collapses under its own gravity, and explodes as a supernova.

After the explosion, the remaining core is compressed into an extremely small and dense point called a singularity.

🕳 Parts of a Black Hole:

1. Singularity – The center point of infinite density

2. Event Horizon – The boundary around the black hole; once something crosses this, it can never escape

3. Accretion Disk – A rotating ring of gas and dust around the black hole (very hot and visible)

📏 How big are black holes?

• Some black holes are only a few times more massive than our Sun

• Supermassive black holes can be millions or billions of times heavier than the Sun

• Example: Sagittarius A* is a supermassive black hole at the center of our galaxy, the Milky Way

🔬 How do scientists detect black holes?

Since we can’t see black holes directly, astronomers detect them by:

• Observing the motion of stars and gas nearby

• Measuring X-rays emitted by matter falling into the black hole

• Detecting gravitational waves from black hole collisions

📸 First image of a black hole

In 2019, scientists from the Event Horizon Telescope (EHT) captured the first-ever image of a black hole’s “shadow” in galaxy M87 — a historic achievement in astronomy.

🧠 Fun Facts:

• Falling into a black hole would stretch your body like spaghetti — this is called spaghettification

• Time moves slower near black holes — a concept predicted by Einstein’s theory of relativity

• Black holes warp space and time around them

📌 Quick Summary: