Intergalactic
"Intergalactic" refers to anything that exists or occurs between galaxies. It encompasses the vast spaces and phenomena that lie beyond our own galaxy, the Milky Way. This term is often used in astronomy to describe the interactions, movements, and characteristics of celestial bodies that are not confined to a single galaxy.
In popular culture, "Intergalactic" is frequently associated with science fiction themes, exploring the possibilities of travel, communication, and life beyond Earth. It can also refer to various works, such as the song "Intergalactic" by the Beastie Boys, which captures the imagination of space exploration and adventure.