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?

For years, astronomers have observed the strange motion of Andromeda, the Milky Way’s closest large galactic neighbor. While most galaxies in the universe are receding due to the expansion of space, ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. M31, the Andromeda Galaxy, is one of the most spectacular ...

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 ...

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 ...