Black holes

Front

What is a black hole?

Back

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What happens to time and space around a massive object?

Back

The more mass an object has, the more it bends time and space.

Front

What is the event horizon of a black hole?

Back

The event horizon is the boundary around a black hole beyond which no information or matter can escape.

Front

What is a singularity in the context of black holes?

Back

A singularity is the point at the center of a black hole where density becomes infinite and the laws of physics as we know them cease to function.

Front

What is an accretion disk?

Back

An accretion disk is a structure formed by diffused material in orbital motion around a central body, often found around black holes.

Front

How do we observe black holes if they do not emit light?

Back

We can see black holes by observing the light of stars at their event horizon, which reflects off objects around the accretion disk.

Front

What is a neutron star?

Back

A neutron star is an extremely dense mass of neutrons formed at the core of a supernova, created by the compression of electrons and protons.

Front

What is escape velocity?

Back

Escape velocity is the minimum speed needed for an object to break free from the gravitational attraction of a celestial body.

Front

What is the relationship between mass and gravitational pull?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle, often leading to the formation of neutron stars or black holes.