“Which is the closest galaxy to Earth?”

"The Andromeda Galaxy approximately 2.5 million light-years away is the closest spiral galaxy to Earth. Visible to the naked eye under clear conditions it is a key subject in astronomical studies. Its eventual collision with the Milky Way predicted in billions of years underscores cosmic evolution. Observations of Andromeda enhance understanding of galactic structures and dynamics contributing to research on stellar formation and the universe’s large-scale structure pivotal in modern astrophysics."