Black holes are regions of spacetime where gravity is so strong that nothing, not even light, can escape. They are defined by an event horizon surrounding a singularity of unknown composition. There are three main types - stellar black holes formed by collapsed stars, supermassive black holes found at the center of galaxies, and primordial black holes theorized to have formed in the early universe. Black holes vary greatly in size from 10 to 100 solar masses for stellar black holes up to billions of solar masses for supermassive black holes located in galaxies.

1. BLACK HOLES

2. 1.What are they?

3. 1.1 Definition
“A black hole is a region of space-time
exhibiting such strong gravitational
effects that nothing—not even
particles and electromagnetic
radiation such as light—can escape
from inside it ”

4. 1.2What are they made of?
We don’t really know.

5. 1.3What parts do they have? Event Horizon
Singularity

6. 2.Types of black holes

7. 2.1 Stellar Black Holes

8. 2.2 Supermassive Black Holes

9. 2.3 Primordial Black Holes

10. 3. How do they form?

11. 3.1 How Primordial Black Holes form

12. 3.2 How Stellar Black Holes form

13. 4. How big are black holes?

14. 4.1 How can we measure size?
Measured in Solar Masses (1.989 × 1030 kg)

15. 4.2 Different Black Holes and Sizes
Stellar Black Holes - 10 to 100 solar masses (M☉)
Supermassive Black Holes - 10 to 50 billion M☉
Primordial Black Holes - 1025 kg

16. THANKYOU FORYOUR
TIME
Presentation created & edited by:William Evans
Video edited by:William Evans
Presented by:William Evans, Rodrigo Marcos & Franco Rocha