Scientists discovered the Andromeda galaxy, known as M31, hundreds of years ago, and around a century ago, we realized that it had negative radial velocity toward the Milky Way. In other words, ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This illustration shows a stage in the predicted merger ...

Did you know that you can see the closest spiral galaxy next to our own in the sky? While binoculars and telescopes will offer much better views, it’s still possible to see it with your naked eye if ...

We preselected all newsletters you had before unsubscribing.