Astronomers have spotted the largest twin jets ever seen erupting from a black hole. The jets stretch for around 23 million light-years, well beyond the limits of their host galaxy and stretching as long as 140 Milky Way galaxies lined up from end to end.

The jets are erupting from a supermassive black hole at the heart of a galaxy located around 7.5 billion light-years away, meaning they are seen as they were when the 13.8 billion-year-old universe was just 6.3 billion years old, around half its current age. The jets that blast out from above and below the black hole put out trillions of times more energy per second than our sun does.