The Triangulum Galaxy, also informally known as the Pinwheel Galaxy, is a spiral galaxy 2.7 million light-years from Earth ...

On the night of October 5-6, 1923, Carnegie astronomer Edwin P. Hubble took a plate of the Andromeda Galaxy (Messier 31) with the Hooker 100-inch telescope of the Mount Wilson Observatory. This plate, ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

The Hubble Space Telescope completes a high-resolution portrait of our galaxy's gorgeous neighbor, which will help scientists better understand our Milky Way.

The most detailed panorama of the entire Andromeda galaxy is packed with science that could revolutionize our understanding of how spiral galaxies across the universe form and evolve.

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Scientists have created the largest mosaic image of a galaxy 2.5 million lightyears away. The Andromeda Galaxy, our closest ...

The stunning panorama features over 600 overlapping Hubble images that have been painstaking stitched together. Spread across 2.5 billion pixels, you'll find some 200 million stars ...

Panorama of Nearest Galaxy Unveils Hundreds of Millions of Stars On a crisp, clear autumn night, you can see the most distant object visible to the naked eye — the stunning Andromeda Galaxy, our Milky ...