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

The result is an impressive panorama, revealing approximately 200 million stars and extending six times the apparent diameter of the full Moon in the night sky.

That's one of the reasons that observing Andromeda, also known as M31, is important. Like the Milky Way, M31 is also a barred spiral. By observing M31 in detail, we can learn more about our own galaxy ...

Despite its nearness, photographing the entire Andromeda Galaxy is no easy ... required more than 1,000 Hubble orbits to produce the 2.5-billion-pixel image of M31. This new data could help ...

This image, captured by NASA's Wide-field Infrared Survey Explorer (WISE), showcases the expansive Andromeda Galaxy, also referred to as Messier 31 or M31. This image of M31, our nearest major ...

Astronomers have released the most comprehensive photograph of the Andromeda galaxy, which contains over 200 million stars. This astounding accomplishment sheds light on the galaxy's development and ...

As GuhaThakurta explained, Hubble’s images captured the number and variety of stars that make up ... forming disk that's not as active as you might expect given the galaxy's mass." Astronomers refer ...

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

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

“The galaxy is so large that the mosaic is assembled from approximately 600 separate fields of view.” The results are described in a paper in the Astrophysical Journal. Zhuo Chen et al. 2025. PHAST.

Hubble took a plate of the Andromeda Galaxy (Messier 31) with the Hooker 100-inch telescope of the Mount Wilson Observatory. This plate, with identification number H335H ("Hooker plate 335 by Hubble") ...