Something enormous is on its way to our cosmic neighborhood. The Milky Way, along with our closest major neighbor the ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...

About two and a half million light years from Earth, the Andromeda Galaxy is not just a smudge of light in the night sky but ...

Add Yahoo as a preferred source to see more of our stories on Google. This illustration shows a possible view from Earth of the early stages of a predicted merger billions of years from now between ...

Add Yahoo as a preferred source to see more of our stories on Google. A hypothetical view from Earth as the Andromeda galaxy (on left) is about to collide with part of the Milky Way galaxy. Our Milky ...

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?

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner. Analysis of cosmological simulations published in Nature Astronomy reveal that ...

September 2026 brings nine night sky events, from Moon-planet pairings and Venus at peak brightness to the Harvest Moon and possible auroras.

Andromeda III is one of at least 13 dwarf satellite galaxies in orbit around the Andromeda galaxy, or Messier 31, the Milky Way's closest grand spiral galactic neighbor. Andromeda III is a faint, ...

A group of astronomers has discovered the smallest, dimmest satellite galaxy bordering the Milky Way’s nearest galactic neighbor, the Andromeda Galaxy. The itsy-bitsy satellite galaxy is named ...

THE striking success of a new planet-hunting technique that has found a chilly “super-Earth” nearly 9000 light years away is not only suggesting that such planets are common, it is even encouraging ...