Black Holes General
Stellar Facts
History
100

What is a Black Hole?

A Black Hole is an object formed after the collapse of the core of a massive star.
100

What is the measurement for weighing black holes?

Solar Masses

100

How did black holes Form?

The core of a massive star collapsing

200

What color is a black hole?

Black

200

How far is M87?

54,000,000 Light Years away

200

How did black holes gain size?

Devouring stars or merging with each other

300

Why are black holes, "Invisible"?

Because light can't escape once it comes in.

300

In 4 Billion years, what would happen to Sagatarius A?

It would be devoured by Andromeda's Black Hole.

300

When were black holes discovered?

2019

400
How far are black holes from Earth?

Thousands, millions or billions of light years

400

What is the Largest Black Hole? Provide solar Masses.

Ton 618; 66,000,000,000 Solar Masses

400
What black hole was discovered in 2022?

 In 2022, Saggatarius A was discovered, proving that black holes are real.

500

What is an Acretion disk?

A ring of light that orbits around a black hole.

500

How many black holes do we know exist?

A few dozen

500

When were black holes originally discovered before M87?

Hubble Space Telescope saw bright lights at the center of Galaxies which Nasa believed they may be black holes.