The Andromeda Galaxy is the most distant object you can see from Earth with the naked eye. As the nearest spiral galaxy to our own, it has helped astronomers to better understand the origin and ...

When Hubble looks at Andromeda, 2.5 million light-years away, it can see the entire galaxy and its surroundings. A sort of bird’s-eye view. We can’t do that with the Milky Way, since we are embedded ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. When will the Milky Way collide with the Andromeda Galaxy?

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For years, astronomers have predicted a dramatic fate for our galaxy: a head-on collision with Andromeda, our nearest large galactic neighbor. This merger—expected in about 5 billion years—has become ...

Scientists from Helsinki, Durham and Toulouse universities used data from NASA's Hubble and the European Space Agency's Gaia space telescopes to simulate how the Milky Way and Andromeda will evolve ...

Multi-epoch Hubble Space Telescope imaging, tracked over five to seven years, has produced the first direct measurements of Andromeda’s motion across the sky, confirming that the Milky Way’s nearest ...