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…
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…
Black Hole Jets Might Be Molded by Magnetism
Visible-light Hubble image of the jet emitted by the 3-billion-solar-mass black hole at the heart of galaxy M87 (Feb. 1998)…
Weekly SkyWatcher’s Forecast: December 3-9, 2012
Greetings, fellow SkyWatchers! With a whole lot less Moon present in the early evenings, it's time to do some very…
Gigantic Plasma Jets Pour From the Heart of Hercules A
Combined Hubble (optical) and VLA (radio) images show enormous radio jets shooting out from the galaxy Hercules A Talk about…
“Oddball” Galaxy Contains the Biggest Black Hole Yet
Image of lenticular galaxy NGC 1277 taken with Hubble Space Telescope. (NASA/ESA/Andrew C. Fabian) It's thought that at the heart…
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…