M31

Andromeda Shredded and Consumed a Massive Galaxy About Two Billion Years Ago

According to a new study by a team from the University of Michigan, Andromeda survived a merger with a massive…

3 years ago

Messier 32 – the “Le Gentil” Dwarf Elliptical Galaxy

Located in the direction of the Andromeda Constellation is the dwarf elliptical galaxy known as "Le Gentil" (or Messier 32),…

5 years ago

The Andromeda Constellation

In the 2nd century CE, Greek-Egyptian astronomer Claudius Ptolemaeus (aka. Ptolemy) compiled a list of the then-known 48 constellations. His…

6 years ago

Dwarf Galaxies That Dance? Andromeda Observations Reveal A Larger Cosmic Mystery

What is up with these dwarf galaxies? A survey of thousands of galaxies using the Sloan Digital Sky Survey reveals…

7 years ago

Astronomers Refine Distances to our Closest Spiral-Galaxy Neighbors

M31 and M33 are two of the nearest spiral galaxies, and can form the basis for determining distances to more remote…

8 years ago

Hydrogen Clouds Discovered Between Andromeda And Triangulum Galaxies

Score another point for the National Science Foundation's Green Bank Telescope (GBT) at the National Radio Astronomy Observatory (NRAO) in…

8 years ago

Comet PANSTARRS Meets the Andromeda Galaxy — More Amazing Images

More of our readers had success in capturing the awesomeness of seeing Comet PANSTARRS encounter the Andromeda Galaxy (M31) in…

8 years ago

Lighting Up Andromeda’s Coldest Rings

Cold rings of dust are illuminated in this image taken by Herschel's Spectral and Photometric Imaging Receiver (SPIRE) instrument. Credit: ESA/NASA/JPL-Caltech/B.…

9 years ago

Galactic Close Call Leaves a Bridge of Gas

[/caption] An ancient passing between two nearby galaxies appears to have left the participants connected by a tenuous "bridge" of…

9 years ago

It’s Inevitable: Milky Way, Andromeda Galaxy Heading for Collision

[/caption] Astronomers have known for years that our Milky Way and its closest neighbor, the Andromeda galaxy, (a.k.a M31) are…

9 years ago