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Not all black holes are the same
or even chaotic.

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So scientists currently categorize
black holes into four types.

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There are the ones that 
we've theorized exist

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like tiny primordial black holes

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which formed shortly 
after the big bang.

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And intermediate-
mass black holes

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that are sort of 
missing in the sense

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that they 
should be there

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but we haven't 
confirmed sighting.

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We've observed plenty of 
stellar-mass black holes

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that are at least eight times

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the mass of our Sun and 
the leftovers of supernovae.

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The most dramatic by far

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are the supermassive black holes,

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which are hundreds of thousands

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to billions of times more 
massive than our Sun.

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In fact

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they can reach sizes so big

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they can span our entire solar system