26 September 2013, 09:37 AM ET
This stunning wallpaper shows Redwood National Park in California.
25 September 2013, 09:37 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 September 2013, 10:43 AM ET
This wallpaper shows Craters of the Moon National Monument and Preserve in Idaho. Craters of the Moon is a vast ocean of lava flows with scattered islands of cinder cones and sagebrush.
23 September 2013, 09:37 AM ET
The Spanish city of Barcelona is pictured in this space wallpaper by Japan’s ALOS satellite. Along the coast, we can see the Barcelona’s port—one of Europe’s top ten largest container ports. This image was released June 21, 2013.
20 September 2013, 09:03 AM ET
A supermoon climbed its way to the top of the Washington Monument, Sunday, June 23, 2013, in Washington as seen in the amazing space wallpaper. This year the supermoon is up to 13.5 percent larger and 30 percent brighter than a typical full moon is.
18 September 2013, 11:55 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.
17 September 2013, 11:55 AM ET
This wallpaper shows Bryce Canyon National Park in Utah. Famous for its unique geology of red rock spires and horseshoe-shaped amphitheaters, Bryce offers the visitor a "Far View" from the eastern edge of the Paunsaugunt Plateau in southern Utah.
16 September 2013, 09:13 AM ET
The NASA/ESA Hubble Space Telescope has captured this cool space wallpaper of nearby spiral galaxy Messier 61, also known as NGC 4303. In this image the galaxy is seen face-on as if posing for a photograph, allowing us to study its structure closely.
12 September 2013, 10:25 AM ET
This wallpaper shows Bandelier National Monument in New Mexico. Bandelier protects more than 33,000 acres of rugged but beautiful canyon and mesa country as well as evidence of a human presence here going back more than 11,000 years.
11 September 2013, 11:49 AM ET
In this electrifying space wallpaper, taken on Friday June 7, 2013, a furious thunderstorm is discharging its mighty rage over Cerro Paranal.
10 September 2013, 10:45 AM ET
This wallpaper shows Assateague Island in Maryland and Virginia. The "wild" horses on Assateague are actually feral animals, meaning that they are descendants of domestic animals that have reverted to a wild state.
09 September 2013, 09:09 AM ET
This space wallpaper is a scaled-down version of a full-circle view, which combined nearly 900 images taken by NASA's Curiosity Mars rover.
06 September 2013, 12:41 PM ET
The contorted object captured by Hubble in this cool space wallpaper is IRAS 22491-1808, also known as the South America Galaxy. It is an ultraluminous infrared galaxy (ULIRG) that emits a huge amount of light at infrared wavelengths.
05 September 2013, 09:48 AM ET
Ligeia Mare, shown here in this stunning false-color space wallpaper from the international Cassini mission, is the second largest known body of liquid on Saturn's moon Titan. It is filled with liquid hydrocarbons, such as ethane and methane.
04 September 2013, 09:15 AM ET
This beautiful wallpaper shows Black Canyon of the Gunnison National Park in Colorado. The canyon of Gunnison's unique and spectacular landscape was formed slowly by the action of water and rock scouring down through hard Proterozoic crystalline rock.
03 September 2013, 10:36 AM ET
This space wallpaper is a compilation of three images from Envisat’s radar and shows where southwestern Africa’s Okavango River empties into the inland Okavango Delta in northern Botswana.
30 August 2013, 09:21 AM ET
This spectacular group of young stars as seen in this space wallpaper is the open star cluster NGC 3766 in the constellation of Centaurus (The Centaur).
29 August 2013, 09:53 AM ET
This wallpaper shows Alibates Flint Quarries National Monument in Texas. The monument protects a mesa covered in a lithic scatter carpet of flint, so thick you cannot walk without stepping on human generated flakes of Alibates flint.
28 August 2013, 08:59 AM ET
The face-on spiral galaxy M101, or the Pinwheel Galaxy, is seen at ultraviolet and optical wavelengths in this amazing space wallpaper taken by ESA’s XMM-Newton space telescope. This image was released June 10, 2013.
27 August 2013, 10:49 AM ET
This beautiful wallpaper shows Muir Woods National Monument in California. The virgin stand of coastal redwoods was named for John Muir, writer and conservationists.
26 August 2013, 09:00 AM ET
This beautiful space wallpaper is a mosaic of Kasei Valles, comprising 67 images taken with the High Resolution Stereo Camera on ESA’s Mars Express. This image was released June 6, 2013.
23 August 2013, 09:35 AM ET
This stunning space wallpaper is a combination of two composite images of NGC 6210.
22 August 2013, 09:57 AM ET
This wallpaper shows Amistad National Recreation Area in Texas, which is the United States portion of International Amistad Reservoir, formed on the Rio Grande along the border of the U.S. and Mexico.
21 August 2013, 09:48 AM ET
This space wallpaper is an artist’s impression showing a dust trap in the system Oph-IRS 48. The dust trap provides a safe haven for the tiny rocks in the disc, allowing them to clump together and grow to sizes that allow them to survive on their own.
20 August 2013, 03:45 PM ET
This wallpaper shows Johnstown Flood National Memorial in Pennsylvania. The South Fork dam failed on Friday, May 31, 1889 and unleashed 20,000,000 tons of water that devastated Johnstown, Pa.
19 August 2013, 09:15 AM ET
This spectacular space wallpaper from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile shows the globular star cluster NGC 6752 in the southern constellation of Pavo (The Peacock).
16 August 2013, 09:31 AM ET
This space wallpaper from ESO's Very Large Telescope (VLT) shows the newly discovered planet HD95086 b, next to its parent star.
15 August 2013, 09:14 AM ET
This wallpaper shows Russell Cave National Monument in Alabama. For more than 10,000 years, Russell Cave was home to prehistoric peoples. Russell Cave provides clues to the daily living of early North American inhabitants dating from 6500 B.C. to 1650 A.D
14 August 2013, 09:00 AM ET
This space wallpaper shows the north polar ice cap of Mars, presented as a mosaic of 57 separate images from the High Resolution Stereo Camera on ESA’s Mars Express.
13 August 2013, 11:13 AM ET
This wallpaper shows Scotts Bluff National Monument in Nebraska. Scotts Bluff has been a natural landmark for many peoples, and it served as the path marker for those on the Oregon, California, Mormon, and Pony Express Trails.
12 August 2013, 10:36 AM ET
Unlike the venomous fictional plants that share its name, the Trifid of the North as seen in this space wallpaper, poses no threat to your vision.
09 August 2013, 10:28 AM ET
This spectacular space wallpaper shows northwestern Crete, the largest and most populous of the Greek islands. It is a compilation of three radar images from Japan’s ALOS satellite. Image released March 13, 2013.