27 August 2012, 10:41 PM ET
In this space wallpaper, a chapter of the layered geological history of Mars is laid bare in this image from NASA's Curiosity rover.
27 August 2012, 11:47 AM ET
This amazing space wallpaper portrait of the bright star-forming region NGC 346 reveals new information about how stars form.
26 August 2012, 01:22 PM ET
Astronaut John W. Young jumps up from the lunar surface as he salutes the U.S. flag during the Apollo 16 mission.
24 August 2012, 03:25 PM ET
This composite space wallpaper represents the close environment of Beta Pictoris as seen in near infrared light.
23 August 2012, 01:58 PM ET
This stunning space wallpaper shows a Bok globule nicknamed the "caterpillar" appears at the right.
22 August 2012, 01:26 PM ET
A brilliant white core is encircled by thick dust lanes in this spiral galaxy, seen edge-on in this cool space wallpaper.
21 August 2012, 12:09 PM ET
This cool space wallpaper shows the southern part of the spectacular N44 H II region in the Large Magellanic Cloud.
20 August 2012, 02:02 PM ET
This space wallpaper of the luminous blue variable was taken by ESO's Very Large Telescope, yielding an incredible amount of detail.
17 August 2012, 08:01 PM ET
New findings about an extraordinary galaxy cluster discovered by the National Science Foundation’s 10-meter South Pole Telescope in this space wallpaper.
17 August 2012, 02:16 PM ET
This stunning space wallpaper shows the central region of a beautiful spiral galaxy, Messier 83.
16 August 2012, 12:40 PM ET
This amazing space wallpaper reveals the London Olympic Park including Olympic Stadium is visible towards the base of this Proba-1 High Resolution Camera image of East London, acquired on 11 August 2012.
15 August 2012, 07:55 PM ET
This space wallpaper reveals an artist's impression of galaxy at center of Phoenix Cluster.
15 August 2012, 11:44 AM ET
The Milky Way arches across this rare 360-degree panorama of the night sky above the Paranal platform, home of ESO’s Very Large Telescope in this amazing desktop wallpaper.
14 August 2012, 01:45 AM ET
In this space wallpaper, Gale Crater is 154 km wide and is located at latitude 5.4 degrees south and longitude 137.9 degrees east.
13 August 2012, 03:33 PM ET
In this space wallpaper, the Orion Nebula was captured using the Wide Field Imager camera on the MPG/ESO 2.2-metre telescope at the La Silla Observatory, Chile.
13 August 2012, 03:10 PM ET
Night sky watcher Vaibhav Tripathi took this space wallpaper of a Perseid meteor from the Santa Cruz Mountains near Palo Alto, Calif. on August 12, 2012.
10 August 2012, 01:15 PM ET
Dark clouds of dust, called globules, are silhouetted against nearby, bright stars in this space wallpaper. Little is known about the globules, except that they are generally associated with areas of star formation.
09 August 2012, 12:21 PM ET
In this space wallpaper, the Radiation Belt Storm Probes Mission, part of NASA's Living With a Star program, will provide unprecedented insight into the physical dynamics of the radiation belts.
09 August 2012, 11:47 AM ET
This color full-resolution space wallpaper showing the heat shield of NASA's Curiosity rover was obtained during descent to the surface of Mars on Aug. 5 PDT (Aug. 6 EDT).
08 August 2012, 12:13 PM ET
NASA's Solar TErrestrial RElations Observatory (STEREO) satellites have provided the first three-dimensional images of the Sun in this space wallpaper.
07 August 2012, 12:30 PM ET
This stunning space wallpaper of the landscape to the north of NASA's Mars rover Curiosity was acquired by the Mars Hand Lens Imager (MAHLI) on the afternoon of the first day after landing.
07 August 2012, 12:10 PM ET
This space wallpaper taken by NASA's Curiosity shows what lies ahead for the rover, its main science target, Mount Sharp.
06 August 2012, 02:10 PM ET
Bacolor Crater is a magnificent impact feature about 20 kilometers (12 miles) wide in this space wallpaper.
03 August 2012, 10:38 AM ET
Interconnected craters Sigli and Shambe, believed to have formed when a large meteorite fragmented in to two pieces just before impact in this amazing space wallpaper.
02 August 2012, 12:32 PM ET
In this amazing space wallpaper, a colorful collection of 100,000 stars are displayed in this small region inside the Omega Centauri globular cluster, a dense group of nearly 10 million stars.
01 August 2012, 12:19 PM ET
This cool space wallpaper reveals a quartet of Saturn's moons, from tiny to huge, surround and are embedded within the planet's rings in this Cassini composition.
31 July 2012, 01:50 PM ET
This cool space wallpaper shows the third image of ESO’s GigaGalaxy Zoom project is an amazing vista of the Lagoon Nebula taken with the 67-million-pixel Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile.
30 July 2012, 11:48 AM ET
In this space wallpaper, Messier 68 is located about 33 000 light-years from Earth in the constellation Hydra (The Female Water Snake).
27 July 2012, 01:16 PM ET
In this space wallpaper, the well-named Cat’s Paw Nebula lies in the constellation of Scorpius.
26 July 2012, 01:03 PM ET
Twice per year, the sunset passes exactly behind Paranal for somebody located on the summit of Armazones mountain in this amazing space wallpaper.
25 July 2012, 05:44 PM ET
This cool space wallpaper from the Pleiades satellite shows the island of Mont Saint Michel and its surrounding bay in northwest France.
24 July 2012, 11:53 AM ET
The ethereal green glow of Aurora Australis high over Concordia station in this stunning space wallpaper.