The boundary beyond which nothing, not even light, can escape from the black hole's gravitational pull

The center of the black hole

The region of spacetime where the gravitational field is strongest

The point of no return for objects falling into the black hole

A point of infinite density and gravity

A region of spacetime where the laws of physics break down

The point where the black hole's gravitational pull is strongest

The point of no return for objects falling into the black hole

A mathematical description of the spacetime around a rotating black hole

A mathematical description of the spacetime around a non-rotating black hole

A mathematical description of the spacetime around a white dwarf

A mathematical description of the spacetime around a neutron star

The region of spacetime outside the event horizon where objects can be dragged around the black hole by its rotation

The region of spacetime inside the event horizon where objects can escape from the black hole's gravitational pull

The region of spacetime where the gravitational field is strongest

The point of no return for objects falling into the black hole

A process by which energy can be extracted from a rotating black hole

A process by which matter can be created from a black hole

A process by which black holes can merge together

A process by which black holes can evaporate

A type of radiation that is emitted by black holes

A type of radiation that is emitted by white dwarfs

A type of radiation that is emitted by neutron stars

A type of radiation that is emitted by supernovae

The paradox that arises from the fact that information can be lost in a black hole

The paradox that arises from the fact that black holes can evaporate

The paradox that arises from the fact that black holes can merge together

The paradox that arises from the fact that black holes can be created

A correspondence between a theory of gravity in a higher-dimensional spacetime and a conformal field theory in a lower-dimensional spacetime

A correspondence between a theory of gravity in a lower-dimensional spacetime and a conformal field theory in a higher-dimensional spacetime

A correspondence between a theory of gravity in a flat spacetime and a conformal field theory in a curved spacetime

A correspondence between a theory of gravity in a curved spacetime and a conformal field theory in a flat spacetime

A mathematical description of the spacetime around a rotating, charged black hole

A mathematical description of the spacetime around a rotating, uncharged black hole

A mathematical description of the spacetime around a non-rotating, charged black hole

A mathematical description of the spacetime around a non-rotating, uncharged black hole

A diagram that shows the causal structure of spacetime around a black hole

A diagram that shows the event horizon of a black hole

A diagram that shows the singularity at the center of a black hole

A diagram that shows the ergosphere of a black hole

The hypothesis that naked singularities cannot exist in spacetime

The hypothesis that black holes cannot evaporate

The hypothesis that black holes cannot merge together

The hypothesis that black holes cannot be created

The paradox that arises from the fact that an observer falling into a black hole would encounter a firewall at the event horizon

The paradox that arises from the fact that an observer falling into a black hole would be stretched to infinity

The paradox that arises from the fact that an observer falling into a black hole would be crushed to a point

The paradox that arises from the fact that an observer falling into a black hole would be frozen in time

The measure of the disorder of a black hole

The measure of the information that is lost in a black hole

The measure of the energy of a black hole

The measure of the mass of a black hole

The temperature of the Hawking radiation emitted by a black hole

The temperature of the event horizon of a black hole

The temperature of the singularity at the center of a black hole

The temperature of the ergosphere of a black hole