13 January 2013, 10:00 AM ET
Astronomers think they know why a dense gas cloud near the Milky Way's center is producing so few stars.
11 January 2013, 03:43 PM ET
The huge instrument is making good progress toward a planned 2018 launch, NASA officials say.
11 January 2013, 04:01 AM ET
The clump of quasars stretches 4 billion light-years from end to end.
10 January 2013, 05:06 PM ET
This composite space wallpaper shows the jet from a black hole at the center of a galaxy striking the edge of another galaxy.
10 January 2013, 04:58 PM ET
NGC 6872 is more than five times wider than our own Milky Way.
10 January 2013, 07:00 AM ET
A new estimate puts our galaxy's mass at 500 trillion to 1 quadrillion times that of the sun.
08 January 2013, 03:45 PM ET
The structure is more than 300 light-years long but just 1 or 2 light-years wide.
07 January 2013, 02:27 PM ET
The spectacular outburst is 10 times brighter than the biggest supernova.
07 January 2013, 01:01 PM ET
Astronomers have spotted comets in six more alien star systems, bringing the tally to 10.
02 January 2013, 02:56 PM ET
A new study suggests planets are extremely common throughout the galaxy.
02 January 2013, 01:00 PM ET
Baby planets pull gas and dust toward their parent star, helping young suns to continue in their evolution.
01 January 2013, 01:18 PM ET
This unique space wallpaper shows AB7, one of the highest excitation nebulae in the Magellanic Clouds (MCs), two satellite galaxies of our own Milky Way.
21 December 2012, 01:51 AM ET
This space wallpaper shows an artist’s impression of the supergiant star Betelgeuse as it was revealed thanks to different state-of-the-art techniques on ESO’s Very Large Telescope (VLT).
19 December 2012, 01:01 PM ET
Some enormous clusters manage to stay young at heart, a new study finds.
18 December 2012, 10:25 AM ET
The Hubble Space Telescope has captured a spinning and gyrating white dwarf carving some incredible features into the planetary nebula (NGC 5189) it has formed.
13 December 2012, 02:01 PM ET
The ratio of the mass of a proton to the mass of an electron hasn't changed.
12 December 2012, 02:20 PM ET
A galaxy that may be farther than any previously seen is shedding light on the earliest years of the universe.
12 December 2012, 01:02 PM ET
Scientists have solved a befuddling mystery about the X-ray light coming from the sun.
12 December 2012, 10:40 AM ET
Astronomers have put together an amazing new image of elliptical galaxy Hercules A.
11 December 2012, 12:40 PM ET
Scientists will report on a population of primitive galaxies that formed more than 13 billion years ago.
10 December 2012, 09:08 AM ET
The surprising answers delivered in the streets of Cadiz, Spain and Cologne, Germany led to this informative explanatory video.
05 December 2012, 02:54 PM ET
A small galaxy named 2MASXI J0224301-244443 ripped through the center of galaxy NGC 922 around 330 million years ago. The collision disrupted clouds of gas and triggered the formation of new stars.
05 December 2012, 01:01 PM ET
Many binary systems spread across vast distances could host a third star in their center.
03 December 2012, 09:28 PM ET
This space wallpaper shows a three-colour image of SCR1845-6357AB generated from the SDI filter images (blue=1.575 micron, green=1.600 micron, red=1.625 micron).
28 November 2012, 01:13 PM ET
This animation depicts the orbit of a giant, super-massive black hole discovered in the compact galaxy NGC 1277. One second represents 22 million years of time in the simulation. Credit: NASA/ESA/Fabian/Remco C. E. van den Bosch of MPIA (animation)
28 November 2012, 06:00 AM ET
An eruption of matter from a quasar could show how galaxies shed weight.
14 November 2012, 06:01 AM ET
The massive exoplanet is just 100 light-years from Earth.
13 November 2012, 05:47 PM ET
This beautiful space wallpaper shows the central parts of the starburst galaxy NGC 1313. The very active state of this galaxy is very evident from the image, showing many star formation regions.
12 November 2012, 01:32 PM ET
This space wallpaper reveals an almost-true colour composite based on images made with the multi-mode VIMOS instrument on the 8.2-m Melipal (Unit Telescope 3) of ESO's Very Large Telescope.
09 November 2012, 01:53 PM ET
This quasar is the most distant yet found and is seen as it was just 770 million years after the Big Bang in this space wallpaper.
08 November 2012, 03:56 PM ET
This stunning space wallpaper shows the beautiful edge-on spiral galaxy NGC 3190 with tightly wound arms and a warped shape that makes it resemble a gigantic potato crisp, as seen by ESO's Very Large Telescope.
08 November 2012, 02:00 PM ET
Fleming 1 is a rare planetary nebula enclosing a binary pair of white dwarf stars (typically these shells of gas surround only one white dwarf). The fast orbit of these stars creates two nearly symmetric jets that make Fleming 1 atypical.
08 November 2012, 09:19 AM ET
In DC's Action Comics 14, the renowned astrophysicist helps Superman track down his home planet. By looking at the facts of this run of the comic he found a similar real Universe red dwarf solar system that the Man of Steel can call home.
07 November 2012, 11:03 AM ET
Whether big or small, stars mostly form the same way; stellar gasses accumulating and slowly condensing until a fusion reaction is started. However, stars can die in different way, from super nova explosions to slow, steady decay.
07 November 2012, 06:55 AM ET
Stars are being born today at just 3 percent the rate of the universe's long-ago peak.
06 November 2012, 01:38 PM ET
The Centaurus A elliptical galaxy may have swallowed a spiral in its past.