Over the course of human history, perhaps no single object in the night sky has drawn more attention than the Andromeda ...

The Andromeda galaxy (M31) has been captured by the Chandra X-ray Telescope. See the imagery and hear a sonification of it.

This summer, I upgraded my small wide-angle view telescope in order to better track deep space objects and capture ...

A Hubble Space Telescope optical image of our nearest neighbor galaxy, Andromeda (M31), with an inset X-ray image of the active center made with the XMM-Newton observatory. The newly discovered ...

The galaxy, also known as M31, can be seen with the naked eye but appears more spectacular from areas with minimal light pollution.

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Go into your backyard about 20:30 p.m. EST or thereabouts ...

What was the first galaxy beyond the Milky Way that you ever saw through binoculars? For me, and I suspect for many of you, the answer is the Andromeda Galaxy (M31). It’s a great choice for a few ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. M31, the Andromeda Galaxy, with its companion galaxies, M32 ...

A composite figure of the Andromeda galaxy (M31) highlights the extremely large field of view of NASA's upcoming Wide Field Infrared Survey Telescope (WFIRST). The background consists of ground-based ...

This image from WISE displays the Andromeda galaxy's older stellar population in blue. The disk of the galaxy shows the aftermath of a collision with another galaxy, clear from the warp in the spiral ...