Galactic tug-of-war propels Milky Way through the universe
Milky Way Galaxy (Shutterstock)

Lola Gayle, STEAM Register It's long been known that the Milky Way galaxy and its companion galaxy Andromeda are moving with respect to the expanding universe. This movement means that both galaxies will collide in the very distant future. But what exactly is propelling the Milky Way through space? According to new research published in Nature…