SyFy explains how some black holes can expel jets of magnetically infused gas.
Whereas supermassive black holes many times do. The disk is called an accretion disk, and conditions in it are difficult to understand. To make matters worse, sometimes these black holes and their disks somehow focus this energy and matter into twin beams, like a double light saber, that scream out at nearly the speed of light up and down, from the disk.
These beams, which astronomers call jets, contain energy across the electromagnetic spectrum from radio waves to X-rays. If that jet is pointed toward Earth, we can see all this radiation, and we call these types of objects quasars (or, if even super-high-energy light is seen, blazars). They’re phenomenally bright, and we can see them from billions of light years away, clear across the observable Universe.
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