21 February 2014, 09:53 AM ET
This stunning space wallpaper is a false-color mosaic, made from infrared data collected by NASA's Cassini spacecraft. It reveals the differences in the composition of surface materials around hydrocarbon lakes at Titan, Saturn's largest moon.
20 February 2014, 09:49 AM ET
This wallpaper shows the well-preserved cliff dwellings of Tonto National Monument in Arizona. Situated within rugged terrain in the northeastern part of the Sonoran Desert, the dwellings were occupied during the 13th, 14th, and early 15th centuries.
19 February 2014, 10:54 AM ET
The zoomed panel on this space wallpaper highlights the galaxy known as z8_GND_5296, which was recently confirmed to be the most distant galaxy known, hailing from only 700 million years after the Big Bang.
14 February 2014, 09:28 AM ET
Several hundred galaxies and the huge amounts of gas that permeate them are depicted in this space wallpaper, which shows the core of the Shapley Supercluster, the largest cosmic structure in the local Universe.
13 February 2014, 11:43 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.
12 February 2014, 11:41 AM ET
This vivid Kompsat-2 space wallpaper shows the Amazon River in the heart of northern Brazil’s rainforest. The false color makes land vegetation appear pink, while water appears green and dark blue.
11 February 2014, 09:35 AM ET
The moon rises above the Pacific in this spectacular space wallpaper taken March 4, 2005, just three minutes before the point of closest approach during Rosetta's Earth fly-by. This image was released Oct. 11, 2013.
10 February 2014, 11:52 AM ET
In this stunning space wallpaper, taken with the Cassini wide-angle camera on June 6, 2012, the spacecraft looks toward the night side of Titan and sees sunlight scattering through the periphery of Titan's atmosphere and forming a ring of color.
07 February 2014, 01:52 PM ET
This stunning space wallpaper shows the Toby Jug Nebula, which is located about 1200 light-years from Earth in the southern constellation of Carina (The Ship’s Keel). More formally known as IC 2220, it is an example of a reflection nebula.
06 February 2014, 11:37 AM ET
This stunning space wallpaper, not unlike a pointillist painting, shows the star-studded center of the Milky Way towards the constellation of Sagittarius.
05 February 2014, 10:05 AM ET
This stunning wallpaper shows Rocky Mountain National Park in Colorado. The Park’s 415 square miles encompass and protect spectacular mountain environments, including subalpine and alpine Trail Ridge Road, and more than 300 miles of hiking trails.
04 February 2014, 10:05 AM ET
The beautiful, petal-like shells of galaxy PGC 6240 are captured in intricate detail by the NASA/ESA Hubble Space Telescope, as seen in this stunning space wallpaper.
03 February 2014, 01:20 PM ET
Deep in the Sahara Desert, the Al Jawf oasis in southeastern Libya is pictured in this space wallpaper from Japan’s ALOS satellite.
31 January 2014, 02:30 PM ET
This amazing space wallpaper of the star formation region NGC 6334 is one of the first scientific images from the ArTeMiS instrument on APEX.
30 January 2014, 10:19 AM ET
Light reflected off Saturn allows the Cassini spacecraft to capture both the back-lit plume and the surface of Enceladus in one shot as seen in this amazing space wallpaper.
29 January 2014, 10:08 AM ET
This wallpaper shows Guadalupe Mountains National Park in Texas. The park safeguards the world's finest example of a fossilized reef, a surprisingly complex and unique assemblage of flora and fauna, and West Texas' only legally designated wilderness.
28 January 2014, 09:36 AM ET
This space wallpaper, snapped by NASA/ESA Hubble Space Telescope, shows the star HD 184738, also known as Campbell’s hydrogen star.
27 January 2014, 10:47 AM ET
The glowing jumble of gas clouds visible in this stunning space wallpaper make up a huge stellar nursery nicknamed the Prawn Nebula.
24 January 2014, 09:22 AM ET
This stunning wallpaper shows Petrified Forest National Park in Arizona.
23 January 2014, 04:23 PM ET
This space wallpaper shows an example of a bipolar planetary nebula known as NGC 6537 taken with the New Technology Telescope at ESO’s La Silla Observatory.
22 January 2014, 09:58 AM ET
Lying more than 110 million light-years away from Earth in the constellation of Antlia (The Air Pump) is the spiral galaxy IC 2560, shown here in this stunning space wallpaper from NASA/ESA Hubble Space Telescope.
21 January 2014, 12:45 PM ET
The glittering specks in this cool space wallpaper, resembling a distant flock of flying birds, are the stars that make up the dwarf galaxy ESO 540-31.
17 January 2014, 09:50 AM ET
The process of selecting a site for NASA's next landing on Mars, planned for September 2016, has narrowed to four semifinalist sites located close together in the Elysium Planitia region of Mars, as seen in this space wallpaper.
16 January 2014, 09:14 AM ET
This wallpaper shows Little Bighorn Battlefield National Monument in Montana—an area that memorializes one of the last armed efforts of the Northern Plains Indians to preserve their way of life.
15 January 2014, 02:43 PM ET
Massive stars can wreak havoc on their surroundings, as can be seen in this beautiful space wallpaper of the Carina nebula from NASA's Spitzer Space Telescope.
14 January 2014, 01:07 PM ET
Prominent patches of wind-blown dust, possibly mixed with volcanic ash, radiate from Becquerel crater and into a neighboring crater, as seen in this spectacular space wallpaper.
13 January 2014, 01:11 AM ET
This cool space wallpaper shows an optical color image of galaxies overlaid with X-ray data (magenta) from NASA's Nuclear Spectroscopic Telescope Array (NuSTAR).
10 January 2014, 11:02 AM ET
This beautiful wallpaper shows Sleeping Bear Dunes National Lakeshore in Michigan.
09 January 2014, 11:34 AM ET
This space wallpaper shows a set of images from NASA's Cassini mission that reveal the turbulent power of a monster Saturn storm.
08 January 2014, 09:54 AM ET
This beautiful space wallpaper taken with the NASA/ESA Hubble Space Telescope shows an example of a bipolar planetary nebula. This object, which is known as Hubble 12 and also catalogued as PN G111.8-02.8, lies in the constellation of Cassiopeia.
07 January 2014, 09:53 AM ET
This space wallpaper is a comparison of how big the moons of Mars appear to be, as seen from the surface of Mars, in relation to the size that Earth's moon appears to be when seen from the surface of Earth.
06 January 2014, 04:44 PM ET
This fascinating space wallpaper shows the caterpillar-shaped knot, called IRAS 20324+4057, which is a protostar in a very early evolutionary stage. It is still in the process of collecting material from an envelope of gas surrounding it.