Parts of a Black Hole
Spacetime
Known Black Holes
Theories
White Holes
100

Past this imaginay line, the gravity is so strong even light cannot escape.

What is the event horizon?

100

The 4'th dimension in spacetime

What is time?

100

The name of the black hole at the center of our universe

What is Sagittarius A?

100

Black holes might be gateways to other universes or points in space if this exists?

Wormholes

100

What is the opposite of a black hole?

White Hole
200

The infinitely dense point of a black hole

What is the singularity?

200

The minimum mass in order for spacetime to bend around an object

What is none?

200

The most well-known ultramassive black hole

What is TON 618?

200

Can time travel theoretically be possible through using black holes (and how)?

Black holes bend spacetime. Since travel in the 4'th dimension (time) could be similar to travel in the other dimensions under certain conditions, it is theoretically possible.

200

What hypothetical object would be proved if going inside a black hole leads to going out of a white hold in another universe?

Wormhole

300

A disc of superheated gas and dust whirling around a black hole

What is an accretion disk?

300

A large pulsar can cause more spacetime bend than a smallblack hole (T or F)

What is false

300

One of the first black holes discovered

What is Cygnus X-1?

300
In the theory of black holes creating dark matter, what do black holes convert into dark matter?

Regular matter

300

If white holes are the opposite of black holes, are they infinitely dense, or do they have no density (and why)?

Infinitely Dense