Our Milky Way is one of more than 100 galaxies bound together by gravity.

The Andromeda galaxy, which is also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way. (NASA) ...

Together, PHAT and PHAST required more than 1,000 Hubble orbits to produce the 2.5-billion-pixel image of M31. This new data could help astronomers understand why Andromeda and the Milky Way could ...

This is a wide-angle view of the distribution of known satellite galaxies orbiting the large Andromeda galaxy (M31), located 2.5 million light-years away. The Hubble Space Telescope was used to ...

The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On a clear night, some stars of the galaxy can be seen from Earth.

For more than a century, astronomers have watched the Andromeda galaxy, a massive swirl of neighboring stars, speed toward the Milky Way. And in recent years, measurements using the Hubble Space ...

Astronomers have long predicted that a collision between our galaxy and nearby Andromeda could be inevitable, but new ...

Discover the stunning 2500-megapixel photomosaic of Andromeda, created from 600 Hubble photos, showcasing the telescope's enduring legacy and contribution to modern astronomy.

A section of the new photomosaic of the Andromeda Galaxy, which features 600 fields of view in total from the Hubble Space Telescope.

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 ...