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Astronomy

The Formation of Relativistic Jets from Active Galactic Nuclei

Quick fact

Some AGN jets extend for millions of light-years—far beyond the size of their host galaxy—and are among the most energetic persistent phenomena in the universe, powered not by the infalling matter itself but by the rotational energy of the black hole.

Why this is interesting

Imagine a black hole—an object so dense that nothing, not even light, can escape it—yet it can shoot colossal streams of matter and energy outward at nearly the speed of light. How can a cosmic trap act as a particle cannon?