22 April 2014, 11:32 PM ET
This space wallpaper of a galaxy cluster taken by the NASA/ESA Hubble Space Telescope gives a remarkable cross-section of the Universe, showing objects at different distances and stages in cosmic history.
15 April 2014, 10:48 PM ET
This beautiful space wallpaper, taken during a time lapse set at the Atacama Large Millimeter/submillimeter Array (ALMA) is another dramatic Ultra High Definition photograph from the ESO Ultra HD Expedition.
14 April 2014, 10:32 PM ET
This space wallpaper was acquired by the satellite's onboard camera on 4 April, just hours after Sentinel-1A entered orbit on April 3, 2014. It shows the top side of one of two deployed solar array wings as well as part of the radar antenna.
14 April 2014, 12:14 AM ET
This space wallpaper from the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile shows a contrasting pair of galaxies: NGC 1316, and its smaller companion NGC 1317 (right).
10 April 2014, 10:40 PM ET
This space wallpaper is a Hubble Space Telescope image of ‘El Gordo,’ which is the nickname given to the most massive cluster of galaxies ever seen to exist when the universe was just half of its current age of 13.8 billion years.
08 April 2014, 11:29 PM ET
This cool space wallpaper is a radar image from the Cassini orbiter showing dark streaks carved into dunes on Saturn’s moon Titan.
03 April 2014, 12:17 AM ET
This space wallpaper is a collage of galaxies in the Herschel Reference Survey at infrared/submillimetre wavelengths by Herschel (left) and at visible wavelengths from the Sloan Digital Sky Survey (SDSS, right).
02 April 2014, 12:20 AM ET
This space wallpaper is an artist's concept depicting NASA's Voyager 1 spacecraft entering interstellar space, or the space between stars.
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.