Record-breaking black hole jets discovered in faraway galaxy

It is the longest black hole jet system ever observed. Picture: E Wernquist/D Nelson/IllustrisTNG Collaboration/M Oei/CalTech/PA

Astronomers say they have discovered the longest pair of black hole jets ever seen in the sky coming from a galaxy far, far away.

The record-breaking eruptions span 23 million light years from end to end, which is equivalent to lining up 140 Milky Way galaxies back to back, according to the researchers.