01 April 2014, 12:41 AM ET
This colorful space wallpaper is a radar composite image shows changes in large-scale agricultural plots in southwest Iran. The image was released March 28, 2014.
28 March 2014, 02:34 PM ET
HR 5171, the brightest star just below the center of this stunning space wallpaper, is a yellow hypergiant, a very rare type of stars with only a dozen known in our galaxy.
27 March 2014, 09:56 AM ET
This stunning space wallpaper is an artist's illustration showing what the rings surrounding the asteroid Chariklo may look like from a distance.
26 March 2014, 07:20 PM ET
This space wallpaper is an orbit diagram for the outer solar system. The sun and terrestrial planets are at the center. The orbits of the four giant planet Jupiter, Saturn, Uranus and Neptune are shown by purple solid circles.
25 March 2014, 02:27 PM ET
Sandstone layers with varying resistance to erosion are evident in this space wallpaper recorded by the Mast Camera on NASA's Curiosity Mars rover on Feb. 25, 2014, about one-quarter mile (about 400 meters) from a planned waypoint called "the Kimberley."
24 March 2014, 12:56 PM ET
Two pairs of Saturn’s moons make a rare joint appearance in this amazing space wallpaper.
21 March 2014, 11:22 AM ET
This stunning space wallpaper is a color composite of the unusual polar ring galaxy NGC 4650A. The image was created from data from the new MUSE instrument on ESO’s Very Large Telescope.
20 March 2014, 02:20 PM ET
To celebrate its 24th year in orbit, the NASA/ESA Hubble Space Telescope has released this beautiful space wallpaper of part of NGC 2174, also known as the Monkey Head Nebula.
19 March 2014, 06:36 PM ET
This spectacular space wallpaper is a mosaic from NASA's Lunar Reconnaissance Orbiter showcasing the north pole in high resolution. The images run from 60 to 90 degrees north latitude, with a resolution of 6.5 feet (2 meters) per pixel.
18 March 2014, 02:12 PM ET
The Dark Sector Lab (DSL), located 3/4 of a mile from the Geographic South Pole, houses the BICEP2 telescope (left) and the South Pole Telescope (right).
17 March 2014, 03:13 PM ET
The sun sets behind BICEP2 (in the foreground) and the South Pole Telescope (in the background) in this stunning space wallpaper.
13 March 2014, 05:14 PM ET
This amazing space wallpaper shows an ultra-bright young galaxy known as GN-z10-3, discovered in the Hubble GOODS North field (Great Observatories Origins Deep Survey).
12 March 2014, 01:48 PM ET
This space wallpaper is an artist’s impression showing the yellow hypergiant star HR 5171. This is a very rare type of star with only a dozen known in our galaxy. Its size is over 1300 times that of our Sun — one of the largest ten stars found so far.
11 March 2014, 04:08 PM ET
A nearly full Rhea shines in the sunlight in this stunning space wallpaper taken in visible light with the Cassini spacecraft’s narrow-angle camera on Sept. 10, 2013. Rhea (949 miles, or 1,527 kilometers across) is Saturn's second largest moon.
10 March 2014, 11:33 AM ET
Only 12 million years old, or less than three-thousandths of the age of the Sun, Beta Pictoris, as seen in this space wallpaper, is 75 percent more massive than our parent star.
07 March 2014, 01:00 PM ET
This space wallpaper from the Hubble Space Telescope shows the rare sight of the asteroid P/2013 R3 breaking apart. This image, the first in a series, was taken on Oct. 29, 2013.
06 March 2014, 11:07 AM ET
The spiral galaxy ESO 137-001 looks like a dandelion caught in a breeze in this stunning space wallpaper from Hubble Space Telescope.
05 March 2014, 12:26 PM ET
Spinning 390 times a second, the "black widow" pulsar PSR J1311−3430 periodically swings its radio (green) and gamma-ray (magenta) beams past Earth in this amazing space wallpaper.
04 March 2014, 02:36 PM ET
This space wallpaper is an illustration depicting the amount of space junk currently orbiting Earth.
03 March 2014, 12:25 PM ET
This dazzling space wallpaper from ESO’s La Silla Observatory in Chile shows the bright star cluster Messier 7.
28 February 2014, 03:30 PM ET
This space wallpaper is a view of the microquasar MQ1—a black hole in the galaxy M83—as it appeared to the Hubble Space Telescope's Wide Field Camera 3.
27 February 2014, 09:38 AM ET
This cool space wallpaper shows a composite view of the giant elliptical galaxy NGC 1399. The stellar component, as observed at optical wavelengths, is shown in white at the center of the image.
26 February 2014, 10:29 AM ET
This stunning space wallpaper shows a small part of the Large Magellanic Cloud, one of the closest galaxies to our own. This collection of small baby stars, most weighing less than the Sun, form a young stellar cluster known as LH63.
25 February 2014, 12:25 PM ET
Roguish runaway stars can have a big impact on their surroundings as they plunge through the Milky Way galaxy. Their high-speed encounters shock the galaxy, creating arcs, as seen in this space wallpaper of speedster star Kappa Cassiopeiae, or HD 2905.
24 February 2014, 03:46 PM ET
This space wallpaper shows a model of the interstellar magnetic fields — which would otherwise be straight — warping around the outside of our heliosphere. The image is based on data from NASA's Interstellar Boundary Explorer.
21 February 2014, 10:14 AM ET
This fascinating Chandra X-Ray Observatory space wallpaper of the young star cluster NGC 346 highlights a heart-shaped cloud of 8 million-degree Celsius gas in the central region.
19 February 2014, 03:07 PM ET
This stunning space wallpaper is the first map of radioactivity in a supernova remnant, the blown-out bits and pieces of a massive star that exploded.
19 February 2014, 11:44 AM ET
In this space wallpaper of a dune field on Mars in a large crater near Mawrth Vallis, some of the dunes appear to be in a V-shaped formation. For dune fields, the spacing of individual dunes is a function of sand supply, wind speed, and topography.
14 February 2014, 10:12 AM ET
NASA's Cold Atom Laboratory utilizes a magnetic trap that confines particles, allowing them to cool to temperatures just barely above absolute zero as seen in this space wallpaper.
13 February 2014, 01:07 PM ET
This space wallpaper shows Jupiter's moon Ganymede centered at 200 west longitude. This mosaic (right) served as the base map for the geologic map of Ganymede (left).
12 February 2014, 01:22 PM ET
This stunning space wallpaper is a composite of 25 separate images spanning the period of Feb. 11, 2013 to Feb. 11, 2014.
11 February 2014, 09:27 AM ET
This space wallpaper combines a photograph of seasonal dark flows on a Martian slope with a grid of colors based on data collected by a mineral-mapping spectrometer observing the same area. Image released Feb. 10, 2014.