Astronomers have mapped a 20,000-light-year-long fountain of gas blasting from a nearby galaxy and polluting intergalactic space at 450 times the top speed of a jet fighter.

Cosmic fountain is polluting intergalactic space with 50 million suns' worth of material

Source: space
Source Link: https://www.space.com/gas-outflow-galaxy-space-pollution-cosmic-fountain