A family portrait of the Andromeda galaxy and its orbiting dwarf satellites raises questions about how galaxies evolve.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Gianluca Masi, Virtual Telescope Project, Background: NASA, ESA and the Hubble Heritage ...

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 ...

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 ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Astronomers have long known that the Andromeda galaxy, aka Messier 31, a swirling city-state of a trillion stars — plus all the accouterments of gas, dust, dark matter and black holes — is rumbling ...

The Andromeda constellation, encompassing the mythological princess, is notable for its size (19th largest) and moderate brightness (37th brightest), with its brightest star, Alpheratz, officially ...

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 ...