"If we shrink the jets to the size of the Earth and the black hole accordingly, the black hole would have the size of 0.2 millimeters: the size of an amoeba or a mite on your skin. So these giant jets are incredible: they are as if a single amoeba was able to generate a powerful fountain of energy the size of the entire Earth!"

Researchers have discovered the largest black hole plasma jets ever in a galaxy almost 7 billion light years away from Earth.

At 23 million light-years long, the black hole jets are the largest yet seen. How big is 23 million light-years, you ask? It’s the equivalent of 140 Milky Ways lined up end-to-end. The study describing the jet megastructure, dubbed Porphyrion after a mythological Greek giant, is published today in Nature.