27 November 2013, 11:11 AM ET
This stunning space wallpaper shows the ancient cratered southern highlands of Mars. Faint traces of a wet past are seen in the form of channels (lower center), fluidized debris around craters (bottom right) and blocks of eroded sediments (top left).
25 November 2013, 08:58 AM ET
This space wallpaper reveals a detailed view of a star-forming region in the Large Magellanic Cloud — one of the Milky Way's satellite galaxies.
22 November 2013, 03:03 PM ET
This beautiful wallpaper shows Great Sand Dunes National Park and Preserve in Colorado. Alpine tundra, forests, massive dunes, grasslands, and wetlands are all protected as elements of the Great Sand Dunes natural system.
21 November 2013, 02:05 PM ET
This cool space wallpaper reveals a very young star being born in the guts of the dark cloud LDN 43 — a massive blob of gas, dust, and ices, gathered 520 light-years from Earth in the constellation of Ophiuchus (The Serpent Bearer).
20 November 2013, 11:25 AM ET
Glowing a dark magenta, the newly discovered exoplanet GJ 504b, as seen in this space wallpaper, weighs in with about four times Jupiter's mass, making it the lowest-mass planet ever directly imaged around a star like the sun.
19 November 2013, 12:12 PM ET
This beautiful wallpaper shows Isle Royale National Park in Michigan. Isle Royale’s physical isolation and primitive wilderness challenged human use for centuries; ironically today it has become the Island’s main attraction.
18 November 2013, 10:06 AM ET
This beautiful space wallpaper shows spiral galaxy Messier 100, located in the southern part of the constellation of Coma Berenices, and lying about 55 million light-years from Earth.
15 November 2013, 11:34 AM ET
This stunning space wallpaper shows the view of the sun from the SWAP (Sun Watcher using Active Pixel System detector and Image Processing) instrument onboard ESA's Proba-2 satellite.
14 November 2013, 01:05 PM ET
This wallpaper shows Channel Islands National Park in California. The park encompasses five islands and their ocean environment, preserving and protecting a wealth of natural and cultural resources.
13 November 2013, 04:11 PM ET
This space wallpaper shows the region where carbon monoxide snow has formed around the star. The carbon monoxide is shown here in green, and begins at a distance of more than 30 astronomical units from TW Hydrae.
12 November 2013, 11:00 AM ET
This fascinating space wallpaper records more than a thousand movements made by ESA’s XMM-Newton space telescope as it shifts its gaze from one X-ray object to another.
11 November 2013, 01:27 PM ET
This space wallpaper shows a view of a three-dimensional visualization of gas in the nearby starburst galaxy NGC 253 (The Sculptor Galaxy) as observed by the ALMA radio telescope in Chile.
08 November 2013, 11:04 AM ET
This fascinating space wallpaper shows a simulation of a gas cloud passing close to the supermassive black hole at the center of the galaxy in mid-2013.
07 November 2013, 09:26 AM ET
This stunning wallpaper shows the marine wilderness of Glacier Bay National Park and Preserve in Alaska.
06 November 2013, 08:13 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.
05 November 2013, 08:21 AM ET
Rising from the heart of the Tularosa Basin is one of the world's great natural wonders: the glistening white sands of New Mexico, as seen in this beautiful wallpaper.
04 November 2013, 07:58 AM ET
A snow line has been imaged in a far-off infant planetary system for the very first time as seen in this cool space wallpaper.
01 November 2013, 08:58 AM ET
This rare space wallpaper taken on July 19 by NASA's Cassini spacecraft shows Saturn's rings and our planet Earth and its moon in the same frame.
31 October 2013, 09:18 AM ET
An extreme of winter on Earth is Antarctica, where the handful of research bases are places of solitude and waiting. The Franco–Italian Concordia outpost, seen here in this cool space wallpaper, is one of these.
30 October 2013, 09:23 AM ET
This wallpaper shows Grand Teton National Park in Wyoming, which preserves a spectacular landscape rich with majestic mountains, pristine lakes and extraordinary wildlife.
29 October 2013, 01:50 PM ET
The ghostly Boomerang Nebula, called the 'coldest place in the universe,' reveals its true shape in this amazing space wallpaper from the giant ALMA radio telescope.
28 October 2013, 12:41 PM ET
A magnetic filament of solar material erupted on the sun in late September, breaking the quiet conditions in a spectacular fashion as seen in this amazing space wallpaper — dubbed a “canyon of fire” by NASA officials.
25 October 2013, 02:43 PM 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.
24 October 2013, 12:26 PM ET
This beautiful wallpaper shows Glen Canyon National Recreation Area, which stretches for hundreds of miles from Lees Ferry in Arizona to the Orange Cliffs of southern Utah.
23 October 2013, 08:51 AM 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.
22 October 2013, 03:01 PM ET
New observations from ESO’s Very Large Telescope show for the first time a gas cloud being ripped apart by the supermassive black hole at the center of the galaxy, as seen in this space wallpaper.
21 October 2013, 12:17 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.
18 October 2013, 03:15 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.
17 October 2013, 01:06 PM ET
This space wallpaper is an illustration showing a "hot Jupiter" planet known as HD 189733b orbiting its star, HD 189733. The NASA/ESA Hubble Space Telescope measured the actual visible light color of the planet, which is deep blue.
16 October 2013, 11:08 AM ET
This cool space wallpaper is an illustration showing HD 189733b, a huge gas giant that orbits very close to its host star HD 189733.
15 October 2013, 01:04 PM ET
The foothills of the Andes Mountains near the southern coast of Peru were captured by the Kompsat-2 satellite, as seen in this cool space wallpaper.
14 October 2013, 09:52 AM ET
This NASA/ESA Hubble Space Telescope space wallpaper shows the planetary nebula IC 289, located in the northern constellation of Cassiopeia.