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A rotating, charged black hole which is characterized by three parameters: mass, charge, and angular momentum.

A rotating black hole with an oblate event horizon. It is characterized by mass and angular momentum.

Located at the center of most galaxies, including our Milky Way, with masses ranging from millions to billions of solar masses.

Hypothetical small black holes theorized to have formed shortly after the Big Bang, due to density fluctuations in the early universe.

A point within a black hole where matter is thought to be infinitely dense, and current physical laws as we understand them break down.

Theoretical radiation predicted to be emitted by black holes due to quantum effects near the event horizon. It allows black holes to lose mass over time.

A spherical region of space where gravity is strong enough that photons are forced to travel in orbits. Located just outside the black hole's event horizon.

Formed from the gravitational collapse of a massive star after a supernova. Mass ranges from about 5 to 20 solar masses.

A non-rotating charged black hole. It adds charge as a characteristic, in addition to mass.

A non-rotating black hole with a spherical event horizon. The Schwarzschild radius defines the size of the event horizon.

A structure formed by diffused material in orbital motion around a massive central body, such as a black hole, often emitting intense radiation.