M31
Not All Black Holes are Ravenous Gluttons
Some Supermassive Black Holes (SMBHs) consume vast quantities of gas and dust, triggering brilliant light shows that can outshine an…
Astronomers Uncover Mass Migration of Stars into Andromeda
Astronomers know that galaxies grow over time through mergers with other galaxies. We can see it happening in our galaxy.…
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…
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),…
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…
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…
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…
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…
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…
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.…