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See that?

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That bright line is a black hole

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throwing a huge
 jet of particles 

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moving at nearly
the speed of light.

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It does make you wonder,

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if black holes gather everything 
that comes too close,

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how does it propel particle jets?

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If you look closely,

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it's a big mess.

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If you have never seen it before,

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you have to imagine
that the black hole is in the center.

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The accretion disk is around it.

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Think about, you know, the
the rings of Saturn that are around

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the planet.

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You have this big accretion
disk around the black hole,

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and the jet is coming out like that.

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So you can think of a garden hose,
you know, when it's

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spraying out there 
in the cosmic distances, right?

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Like really big!

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The matter in the jet has to be 
coming from somewhere.

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So it's coming from the disk.

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And the question is:
How do the particles on the disk

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how do they get 
accelerated, pulled out

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from the disk and directed 
outwards on the jet?

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Because if the black hole is spinning,

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you can steal a little bit of that

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rotational energy of the black hole
and give it to something else.