19 September 2013, 09:26 AM 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.
18 September 2013, 02:54 PM ET
This space wallpaper shows the Soyuz TMA-08M spacecraft with Expedition 36 Commander Pavel Vinogradov, Flight Engineer Alexander Misurkin and Flight Engineer Chris Cassidy, as it lands near the town of Zhezkazgan, Kazakhstan, on Sept. 11, 2013.
17 September 2013, 11:05 AM ET
This space wallpaper shows the Soyuz TMA-08M spacecraft after it landed with Expedition 36 Commander Pavel Vinogradov, Flight Engineer Alexander Misurkin and Flight Engineer Chris Cassidy aboard, near the town of Zhezkazgan, Kazakhstan, on Sept. 11, 2013.
16 September 2013, 09:36 AM ET
This space wallpaper shows the Soyuz TMA-08M spacecraft with Expedition 36 Commander Pavel Vinogradov, Flight Engineer Alexander Misurkin and Flight Engineer Chris Cassidy aboard, as it lands near the town of Zhezkazgan, Kazakhstan, on Sept. 11, 2013.
12 September 2013, 01:52 PM 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.
11 September 2013, 02:45 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.
10 September 2013, 11:21 AM 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.
09 September 2013, 10:08 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).
06 September 2013, 04:11 PM ET
This space wallpaper shows a set of images from NASA's Cassini mission that reveal the turbulent power of a monster Saturn storm.
05 September 2013, 11:34 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.
04 September 2013, 03:55 PM 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.
03 September 2013, 01:40 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.
30 August 2013, 11:14 AM ET
This space wallpaper shows part of a set of three images revealing views three seconds apart as the larger of Mars' two moons, Phobos, passed directly in front of the sun as seen by NASA's Mars rover Curiosity.
29 August 2013, 12:56 PM ET
A United Launch Alliance (ULA) Delta IV Heavy rocket carrying a payload for the National Reconnaissance Office (NRO) lifts off from Space Launch Complex-6, as seen in this amazing space wallpaper.
29 August 2013, 12:22 PM ET
A United Launch Alliance (ULA) Delta IV Heavy rocket carrying a payload for the National Reconnaissance Office (NRO) lifts off from Space Launch Complex-6 as seen in this space wallpaper.
29 August 2013, 10:15 AM ET
This cool space wallpaper is an artist's concept showing the Wide-field Infrared Survey Explorer, or WISE spacecraft, in its orbit around Earth.
28 August 2013, 11:20 AM ET
The spectacular swirling arms and central bar of the Sculptor galaxy are revealed in this space wallpaper from NASA's Spitzer Space Telescope.
27 August 2013, 11:22 AM ET
This space wallpaper of Herbig-Haro object HH 46/47 combines radio observations acquired with ALMA with much shorter wavelength visible light observations from ESO’s New Technology Telescope.
26 August 2013, 09:22 AM ET
From more than 40 countries and 30 U.S. states, people around the world shared more than 1,400 images of themselves as part of the Wave at Saturn event organized by NASA's Cassini mission as seen in this cool space wallpaper.
23 August 2013, 09:57 AM ET
The northwestern part of Greece is pictured in this space wallpaper by the Landsat-8 satellite. The Ionian Sea dominates the left side of the image, with the Ambracian Gulf near the center.
22 August 2013, 01:27 PM ET
A piercingly bright curtain of stars is the backdrop for this beautiful space wallpaper taken by astronomer Håkon Dahle.
21 August 2013, 12:32 PM ET
This space wallpaper is a color-coded topography map from NASA's Dawn mission, which shows the giant asteroid Vesta.
20 August 2013, 12:19 PM ET
This stunning space wallpaper is a NASA Hubble Space Telescope image of Comet C/2012 S1 (ISON) when the comet was slightly closer than Jupiter's orbit at a distance of 386 million miles (621 km) from the sun.
19 August 2013, 09:28 AM ET
This beautiful space wallpaper portrays the galaxies NGC 799 (below) and NGC 800 (above) located in the constellation of Cetus (The Whale).
16 August 2013, 10:12 AM ET
How many rings do you see in this cool space wallpaper of the galaxy Messier 94, also known as NGC 4736? While at first glance one might see a number of them, astronomers believe there is just one.
15 August 2013, 03:28 PM ET
This space wallpaper of the sun was taken on Aug. 14, 2013 from the premises of European Space Operations Centre in Darmstadt, Germany.
14 August 2013, 10:01 AM ET
This beautiful space wallpaper shows the view to the east from Paranal Observatory, seconds after the sun has disappeared behind the horizon.
13 August 2013, 12:02 PM ET
Astronomers using NASA's Hubble Space Telescope have solved a 40-year mystery on the origin of the Magellanic Stream, a long ribbon of gas stretching nearly halfway around our Milky Way galaxy, as seen in this space wallpaper.
12 August 2013, 12:15 PM ET
ESA astronaut Luca Parmitano took this photo of the Mediterranean and the Pleiades as seen from the International Space Station in this cool space wallpaper. "The Mediterranean, the Pleiades and a storm in the distance," he Tweeted on July 29, 2013.
09 August 2013, 11:39 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).
08 August 2013, 10:42 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.
07 August 2013, 10:09 AM 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).