galaxies
Behold: The Largest Known Spiral Galaxy
Astronomers have long known that a spectacular barred spiral galaxy named NGC 6872 is a behemoth, but by compiling data…
Astronomers Find a “Spine” Along Spiral Arms of the Milky Way
Astronomers have found what may be considered a piece of a galactic skeleton; a dark structure of gas and dust…
Hubble Census Unveils Galaxies Shining Near Cosmic Dawn
This new image of the Hubble Ultra Deep Field (HUDF) 2012 campaign reveals a previously unseen population of seven faraway…
Do We Really Need Dark Matter?
Hubble mosaic of massive galaxy cluster MACS J0717.5+3745, thought to be connected by a filament of dark matter. Credit: NASA, ESA,…
The Brightest Galaxies in the Universe Were Invisible… Until Now
Hubble images of six of the starburst galaxies first found by ESA's Herschel Space Observatory (Keck data shown below each…
A Virtual Galactic Smash-Up!
An online simulator for galactic collisions (Adrian Price-Whelan/Columbia University) Have you ever had the desire to build your own galaxies,…
New Online Astronomy Course from CosmoQuest
For those of you who'd like to brush up on your Astronomy knowledge, or never took Astronomy 102, CosmoQuest has…
Now Even Further: Ancient Galaxy is Latest Candidate for Most Distant
It seems that every few months or so comes a new discovery of a new “most distant galaxy ever found.”…
Astronomers Uncover a Crime of Galactic Proportions
As the Milky Way rises over the horizon at the European Southern Observatory, its companion galaxies also come into view.…
Stirred, Not Shaken. Black Hole Antics Puff Up Whopper of a Galaxy
Its massive gravitational field warping space, the huge elliptical galaxy A2261-BCG, seems to have a diffuse halo of stars instead…