01 August 2013, 09:20 AM ET
Galaxies no longer producing stars (quenched galaxies) have long puzzled astronomers with how they grow. Now Hubble Space Telescope and European Southern Observatory's VISTA have shown that larger galaxies stopped producing stars later in life.
01 August 2013, 09:01 AM ET
New observations from NASA's Hubble Space Telescope have helped astronomers solve a longstanding mystery about galaxy evolution. It turns out that ancient galaxies stopped forming stars at a smaller size than their younger cousins did.
31 July 2013, 12:47 PM ET
A mysterious spiral of doom — okay, just a spiral-shaped galaxy — has been captured in a new image by the Hubble Space Telescope.
30 July 2013, 11:00 AM ET
Astrophotographer Bob Franke captured this image of stunning barred spiral galaxy Messier 109 from Focal Pointe Observatory in Chino Valley, Ariz.
29 July 2013, 07:01 PM ET
A newly discovered way to determine the spin of supermassive black holes could help shed light on the evolution of these bizarre objects and the galaxies they anchor. Astronomers used a European spacecraft to estimate one black hole's rotation rate.
28 July 2013, 09:04 AM ET
Would you like fries with that? An avid astrophotographer ordered up one mouth-watering image of the Hamburger Galaxy in this latest night sky photo. Alessandro Falesiedi captured this image from Italy.
26 July 2013, 11:20 AM ET
The sun-approaching Comet ISON floats against a seemingly infinite backdrop of numerous galaxies and a handful of foreground stars in this amazing space wallpaper taken in April 2013 by NASA's Hubble Space Telescope.
25 July 2013, 02:00 PM ET
Scientists have uncovered a new key to understanding the strange workings of neutron stars — objects so dense they pack the mass of multiple suns into a space smaller than a city.
24 July 2013, 05:30 PM ET
Clear skies over Jadwin, Missouri beckoned avid night sky photographer Victor Rogus to shoot this spectacular black-and-white photo of the Milky Way.
24 July 2013, 01:01 PM ET
Fast-paced star formation in some galaxies can starve future star generations, preventing galaxies from massive growth, scientists say. See how it works.
23 July 2013, 01:18 PM ET
Veteran night sky photographer Jeff Berkes captured this spectacular view of the northern lights with lightning, a Bootid meteor and the Milky Way Galaxy. See how Berkes made the stunning image and his thoughts on the night sky vista.
22 July 2013, 09:57 AM ET
This striking cosmic whirl is the center of galaxy NGC 524, as seen in this fascinating space wallpaper. This galaxy is located in the constellation of Pisces, some 90 million light-years from Earth. NGC 524 is a lenticular galaxy.
19 July 2013, 03:00 PM ET
The glowing arc of the Milky Way points to the great ruins of the Incan Empire, Machu Picchu, in this vivid night sky image. Thomas O'Brien took this photo in early July 2013 from the summit of Putucusi Mountain in Peru.
19 July 2013, 02:21 PM ET
This space wallpaper showcases the ancient globular cluster 47 Tucanae, a dense swarm of up to a million stars. The image at left shows the entire cluster, which measures about 120 light-years across.
17 July 2013, 04:30 PM ET
A night sky photographer takes a stunning photo of an aurora over Mt. Katahdin in Maine.
17 July 2013, 02:43 PM ET
In this space wallpaper—among a crowd of face- and edge-on spiral, elliptical, and irregular galaxies in the constellation of Virgo—lies NGC 4866, which is a lenticular galaxy situated about 80 million light-years from Earth.
15 July 2013, 04:13 PM ET
Observations of the dark cloud SDC 335.579-0.292 using the Atacama Large Millimeter/submillimeter array (ALMA) have given astronomers the best view yet of a monster star in the process of forming, as seen in this stunning space wallpaper.
15 July 2013, 09:08 AM ET
Observations of planetary nebula NGC 2392 by the Chandra and Hubble Space Telescopes reveals the complexities of the death of a star like our own. The Sun still has about 5 billion years before it suffers a similar fate.
10 July 2013, 05:02 PM ET
A giant radio telescope in Chile has captured amazing baby photos of what will eventually be a colossal star 11,000 light-years from Earth. Even more shocking: It's still growing, scientists say.
09 July 2013, 11:44 AM ET
This NASA/ESA Hubble Space Telescope space wallpaper shows the planetary nebula IC 289, located in the northern constellation of Cassiopeia.
09 July 2013, 07:00 AM ET
Night sky photographer Mike Taylor snaps two stunning images of the Milky Way over rural Maine. See how the veteran astrophotographer did it and with what equipment in this space photos glimpse.
08 July 2013, 09:40 AM ET
A look at these weird, light-gobbling cosmic monsters.
08 July 2013, 09:16 AM ET
This fascinating space wallpaper is an artist’s impression showing light from the heart of a background galaxy, which allowed scientists to explore how galaxies refuel.
05 July 2013, 11:33 AM ET
A bright quasar shining through the gas around another galaxy provides insight into galactic feeding habits.
05 July 2013, 10:23 AM ET
The Andromeda Galaxy, the closest galaxy to our own Milky Way, gets the star treatment in this dazzling photo by amateur astronomer and photographer Lorenzo Comolli. See how he snapped the amazing galaxy photo here.
03 July 2013, 03:43 PM ET
This fascinating space wallpaper reveals a nearby star that at first glance looks like it is older than the universe. This "Methuselah star," cataloged as HD 140283, could be as old as 14.5 billion years.
03 July 2013, 11:37 AM ET
Using an innovative process that combines hundreds of flat 2D space photos, the upcoming IMAX movie 'In Saturn's Rings' brings depth to awe inspiring photos of planets and galaxies, allowing viewers to 'fly through' these cosmic wonders.
03 July 2013, 07:00 AM ET
Veteran solar photographer Alan Friedman captured this strange view of Earth's star as blue sun.
02 July 2013, 05:08 PM ET
Photographer Jason Hines snapped this spectacular photo of the supermoon full moon over the Grand Canyon on June 23, 2013.
02 July 2013, 04:45 PM ET
What looks like a celestial hummingbird in this stunning space wallpaper is really the result of a collision between a spiral and an elliptical galaxy at a whopping 326 million light- years away.
01 July 2013, 08:12 AM ET
Here's what humanity would have to do to reach a star in less than 100 years.
01 July 2013, 07:09 AM ET
See photos of galaxies across the universe from NASA's Galaxy Evolution Explorer, or GALEX, space telescope, which launched in 2003 and shut down in 2013.
01 July 2013, 07:00 AM ET
After 10 years in orbit, NASA's GALEX mission is now over. The Galaxy Evolution Explorer mission began in 2003 and officially shut down in 2013.
27 June 2013, 02:01 PM ET
The 36-year-old spacecraft is exploring new realms at the solar system's edge.
26 June 2013, 10:22 AM ET
A previously unsuspected tidal dwarf galaxy candidate (upper left) appears only in the ultraviolet, indicating the presence of many hot young stars as seen in this cool space wallpaper.
24 June 2013, 09:30 AM ET
Looking towards the constellation of Triangulum (The Triangle), in the northern sky, lies the galaxy pair MRK 1034 as seen in this space wallpaper.