The Carter-Penrose diagram is a 2-dimensional representation of the geometry of spacetime around a black hole. It allows us to visualize the curvature of spacetime and the paths of objects moving in the vicinity of the black hole.

The event horizon is the boundary in spacetime beyond which nothing, not even light, can escape the gravitational pull of a black hole.

The singularity is the point of infinite density and gravity at the center of a black hole. It is a region where the laws of physics, as we know them, break down.

The ergosphere is the region of spacetime outside the event horizon but inside the photon sphere. In this region, objects can be dragged around the black hole by its rotation.

The photon sphere is the surface of a black hole where light orbits at the speed of light. It is located just outside the event horizon.

Gravitational lensing is the phenomenon where light and other forms of electromagnetic radiation are bent and distorted by the gravitational field of a massive object.

An accretion disk is a disk of matter and energy that orbits a black hole. The matter and energy in the disk are heated by friction and emit X-rays and other forms of electromagnetic radiation.

Hawking radiation is the process by which a black hole loses mass and energy over time. It is caused by the creation of virtual particles near the event horizon of the black hole.

A wormhole is a hypothetical bridge between two distant regions of spacetime. It is a shortcut that allows objects to travel between two points in spacetime without having to travel through the normal space between them.

The singularity is the point of infinite density and gravity at the center of a black hole. It is a region where the laws of physics, as we know them, break down.

The event horizon is the boundary in spacetime beyond which nothing, not even light, can escape the gravitational pull of a black hole.

The ergosphere is the region of spacetime outside the event horizon but inside the photon sphere. In this region, objects can be dragged around the black hole by its rotation.

The photon sphere is the surface of a black hole where light orbits at the speed of light. It is located just outside the event horizon.

Gravitational lensing is the phenomenon where light and other forms of electromagnetic radiation are bent and distorted by the gravitational field of a massive object.

An accretion disk is a disk of matter and energy that orbits a black hole. The matter and energy in the disk are heated by friction and emit X-rays and other forms of electromagnetic radiation.