Agujero negro

The video explains that black holes are regions where mass is so concentrated that not even light can escape their gravity. Although black holes are invisible, their presence is detected through the gravitational effects they have on nearby objects. Some black holes may be remnants of the Big Bang, while others form when large stars collapse.

What is the nature of black holes in terms of gravity?

How can we observe black holes if we cannot see them directly?

What are the gravitational effects of black holes on other objects?

What are some possible origins of black holes?

What happens when large stars collapse in relation to black holes?