Runaway stars could influence the cosmos far past their home galaxies

Runaway stars could be an underappreciated force in the universe. These massive stars, about five to 140 times the mass of the sun, emit ultraviolet radiation and supersonic stellar winds that can sculpt the gas and dust around them. At the end of their lives, the heavyweight stars explode as supernovas, spreading heavy elements around the galaxy.

[Read more here](https://www.sciencenews.org/article/runaway-stars-cosmos-galaxies) and the research [article here.](https://www.nature.com/articles/s41586-024-08013-8)