Inside black holes
Chapter 1
The anatomy of a black hole
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Chapter 2
The four cosmic families
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Chapter 3
Extreme physics and spaghettification
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Chapter 4
Photographing the invisible
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YOUR GOAL
Master of Inside black holes
Ch 2 · The four cosmic families
hue Black Hole Cosmic Families
Four cosmic families, four cosmic families, supermassive giants holding it down!
Fun Fact
Sagittarius A* mass: Our galaxy's central black hole, Sagittarius A*, weighs as much as 4.3 million of our Suns combined.
Glossary
black hole (noun)
A region of spacetime where gravity is so strong that nothing, not even light, can escape. Sagittarius A is a supermassive black hole located at the center of the Milky Way galaxy.
A region of spacetime where gravity is so strong that nothing, not even light, can escape. Sagittarius A is a supermassive black hole located at the center of the Milky Way galaxy.
Quiz
Approximately how many solar masses is Sagittarius A*, our galaxy's central black hole?
Quiz
Which hypothetical black holes are thought to have formed in the first second of the universe?