How Much Do You Know About Black Holes?

Black holes are one of the most mysterious natural phenomena in our universe. No one knows exactly how they got here, but scientists have a few ideas. Let's test your knowledge!

Carly Wallace
Created by Carly Wallace
On Jul 16, 2020

Black holes are one of nature's great big mysteries! It is a region of spacetime in the universe where gravity is so strong that no particles can escape from it. There are many theories about how black holes are formed, but the most accurate one is that a sufficiently compact mass can deform space time to form a black hole. It's equal parts cool, equal parts frightening, and oh, so interesting. Let's see how much you know!

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What would happen if a trickster alien replaced the Sun with a black hole of the same mass?

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The Event Horizon Telescope captured the now-iconic image of the M87 black hole. Why is it called that?

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How many times more massive than our Sun is the M87 black hole?

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How far away from Earth is the M87 black hole?

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About how long will it take for our Sun to turn into a black hole?

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When stars die they become black holes if they have masses of at least...

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The object thought to be a black hole at the center of the Milky Way galaxy is called:

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Over time, a black hole will evaporate via a process called Hawking radiation. How long will it take for the M87 black hole to fully evaporate?

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Quasars are distant galaxies whose central regions are thought to contain:

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Roughly how small would you have to squish the Earth for it to become a black hole?

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If photons (light) have no mass, how can they be trapped by the gravitational field of a black hole?

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The point thought to represent the centre of a black hole is:

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The Chandrasekhar limit is:

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General relativity predicts that black holes have:

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