24 June 2013, 09:09 AM ET
This cool space wallpaper is an illustration showing a messy, chaotic galaxy undergoing bursts of star formation.
21 June 2013, 10:11 AM ET
This wallpaper shows Petrified Forest National Park in Arizona.
20 June 2013, 03:53 PM ET
This space wallpaper reveals a stunning view from ESA’s Herschel space observatory of the iconic Horsehead Nebula in the context of its surroundings.
19 June 2013, 09:25 AM ET
The Danish 1.54-metre telescope located at ESO’s La Silla Observatory in Chile has captured a striking space wallpaper of NGC 6559, an object that showcases the anarchy that reigns when stars form inside an interstellar cloud.
18 June 2013, 02:18 PM ET
This stunning wallpaper shows Grand Canyon National Park in Arizona. A powerful and inspiring landscape, the Grand Canyon overwhelms our senses through its immense size: 277 river miles (446km) long, up to 18 miles (29km) wide, and a mile (1.6km) deep.
17 June 2013, 10:22 AM ET
This fascinating space wallpaper reveals a notional concept of a solar-electric-powered spacecraft, designed to capture a small near-Earth asteroid and relocate it safely close to the Earth-moon system so astronauts can explore it.
14 June 2013, 10:33 AM ET
This amazing space wallpaper shows a close-up view of Saturn’s north-pole hurricane, as seen by the international Cassini spacecraft. The image reveals the intricate detail of cloud formations in this dynamic feature.
13 June 2013, 10:19 AM ET
“Gold!” Headlines read in 1897, starting the rush to what is now Klondike Gold Rush National Historical Park in Alaska as seen in this cool wallpaper.
12 June 2013, 10:16 AM ET
These delicate wisps of gas make up an object known as SNR B0519-69.0, or SNR 0519 for short as seen in this stunning space wallpaper.
11 June 2013, 10:34 AM ET
This stunning wallpaper shows Joshua Tree National Park in California. Viewed from the road, this desert park only hints at its vitality.
10 June 2013, 08:51 AM ET
This space wallpaper is an artist’s impression showing the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star.
07 June 2013, 08:47 AM ET
This beautiful space wallpaper shows a sunset at Concordia research station in Antarctica. The wooden platforms are for observation posts for astronomers. At the southern tip of the world Concordia receives no sunlight for around four months each year.
06 June 2013, 08:58 AM ET
This stunning wallpaper shows Biscayne National Park in Florida. Biscayne protects a rare combination of aquamarine waters, emerald islands, and fish-bejeweled coral reefs.
05 June 2013, 09:06 AM ET
This stunning space wallpaper shows a patchwork network of frozen ridges and troughs that cover the face of Enceladus, Saturn’s most enigmatic of icy moons.
03 June 2013, 05:34 PM ET
At Great Falls Park in Virginia, the Potomac River builds up speed and force as it falls over a series of steep, jagged rocks and flows through the narrow Mather Gorge as seen in this wallpaper.
03 June 2013, 09:39 AM ET
The bright spot located at the edge of the bluish fan-shaped structure in this cool space wallpaper is a young star called V* PV Cephei, or PV Cep.
31 May 2013, 12:14 PM ET
This beautiful wallpaper shows Redwood National Park in California. Coastal redwood forests with virgin groves of ancient trees, including the world's tallest, thrive in the foggy and temperate climate.
30 May 2013, 02:15 PM ET
This wallpaper shows the Buffalo National River in Arkansas, which flows freely for 135 miles and is one of the few remaining undammed rivers in the lower 48 states.
29 May 2013, 04:23 PM ET
Astronomers have used ALMA to pinpoint the locations of more than 100 of the most fertile star-forming galaxies in the early Universe. This fascinating space wallpaper shows close-ups of a selection of these galaxies.
28 May 2013, 02:09 PM ET
This stunning space wallpaper is based largely on observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) — a sensor aboard the Terra Satellite — on July 11, 2005.
27 May 2013, 02:39 PM ET
This space wallpaper is a NASA/ESA Hubble Space Telescope view looking long ago and far away at a supernova that exploded more than 10 billion years ago — the most distant Type Ia supernova ever detected.
24 May 2013, 01:09 PM ET
Jagged peaks, deep valleys, cascading waterfalls and more than 300 glaciers adorn the North Cascades National Park Service Complex in Washington as seen in this stunning wallpaper.
23 May 2013, 12:03 PM ET
This stunning space wallpaper shows the youngest-known supernova remnant in our galaxy, which lies 10,000 light years away in the constellation Cassiopeia. The light from this exploding star first reached Earth in the 1600s.
22 May 2013, 10:22 AM ET
This wallpaper shows the stunning marine wilderness of Glacier Bay National Park and Preserve in Alaska. The park includes tidewater glaciers, snow-capped mountain ranges, ocean coastlines, deep fjords, and freshwater rivers and lakes.
21 May 2013, 10:36 AM ET
This intriguing space wallpaper from ESO’s Very Large Telescope shows the glowing green planetary nebula IC 1295 surrounding a dim and dying star. It is located about 3300 light-years away in the constellation of Scutum (The Shield).
20 May 2013, 10:26 AM ET
The dark hot spot in this false-color space wallpaper from NASA's Cassini spacecraft is a window deep into Jupiter's atmosphere. All around it are layers of higher clouds, with colors indicating which layer of the atmosphere the clouds are in.
17 May 2013, 12:15 PM ET
Close to the California mainland, yet worlds apart, Channel Islands National Park, as seen in this beautiful wallpaper, encompasses five islands and their ocean environment, preserving and protecting a wealth of natural and cultural resources.
16 May 2013, 10:09 AM ET
This stunning space wallpaper, taken using the NASA/ESA Hubble Space Telescope, shows a unique example of a globular cluster — Palomar 2. Palomar 2 is part of a group of 15 globulars known as the Palomar clusters.
15 May 2013, 10:27 AM ET
This wallpaper shows Mesa Verde National Park in Colorado. Mesa Verde, Spanish for green table, offers a spectacular look into the lives of the Ancestral Pueblo people who made it their home for more than 700 years, from A.D. 600 to A.D. 1300.
14 May 2013, 02:14 PM ET
This cool space wallpaper shows a perspective view of a 50 km diameter crater in Thaumasia Planum.
13 May 2013, 09:43 AM ET
This beautiful space wallpaper is an artist’s impression of an exoplanet seen from its moon. The diversity of exoplanets is large — more than 800 planets outside the Solar System have been found to date, with thousands more waiting to be confirmed.
10 May 2013, 01:26 PM ET
This wallpaper shows Dry Tortugas National Park in Florida, which lies almost 70 miles (112.9 km) west of Key West. The park is a cluster of seven islands, composed of coral reefs and sand.