Astronomers have spotted a massive pair of jets releasing material from a distant black hole. The jets are so large they span about 140 Milky Way galaxies in length.

The jets dubbed Porphyrion stretch for 23 million light years, equal to 140 Milky Ways lined up side by side. They erupted from a black hole that existed when the universe was half its current age.

Opposing fountains of plasma and particles spanning 23 million light-years are the longest pair of black hole jets ever seen. That’s far enough to influence the evolution of the universe on ...

Porphyrion is not a solitary phenomenon. A citizen science initiative aimed at identifying large black hole jets has uncovered over 10,000 jets measuring around 3 million light-years or more ...

Astronomers have spotted a massive pair of jets releasing material from a distant black hole. The jets are so large they span about 140 Milky Way galaxies in length.