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.
09 May 2013, 11:36 AM ET
The tip of the "wing" of the Small Magellanic Cloud galaxy is dazzling in this space wallpaper from NASA's Great Observatories.
08 May 2013, 12:21 PM ET
This cool space wallpaper is a composite color image of the Herschel PACS 70, 100, 160 micron-wavelength images of Betelgeuse.
07 May 2013, 02:15 PM ET
This beautiful wallpaper shows Theodore Roosevelt National Park in North Dakota. Theodore Roosevelt first came to the badlands on a hunting trip in September 1883.
06 May 2013, 10:10 AM ET
The soft glow in this space wallpaper is NGC 2768, an elliptical galaxy located in the northern constellation of Ursa Major (The Great Bear). It appears here as a bright oval on the sky, surrounded by a wide, fuzzy cloud of material.
03 May 2013, 09:51 AM ET
This space wallpaper reveals Galaxy 2MASX J09442693+0429569 imaged by Hubble. This elliptical galaxy has entered a transitional phase from a young, star-forming galaxy to an older, larger, "red and dead" galaxy.
02 May 2013, 10:37 AM ET
An area covering northern Namibia and southern Angola is pictured in this stunning space wallpaper. Running across this Kompsat-2 satellite image, the Okavango River forms the border between Namibia to the south and Angola to the north.
01 May 2013, 11:37 AM ET
This beautiful space wallpaper reveals a small, sparkling hook in the dark sky known as J082354.96+280621.6, or J082354.96 for short. It is a starburst galaxy, so named because of the incredibly (and unusually) high rate of star formation occurring within
30 April 2013, 01:01 AM ET
This stunning wallpaper shows Mount Rainier National Park in Washington, which is the greatest single-peak glacial system in the United States.
29 April 2013, 12:45 AM ET
This thin, glittering streak of stars seen in this space wallpaper is the spiral galaxy ESO 121-6, which lies in the southern constellation of Pictor (The Painter's Easel).
26 April 2013, 10:33 AM ET
This stunning wallpaper shows Glacier National Park in Montana. The park is full of pristine forests, alpine meadows, rugged mountains, and spectacular lakes.
25 April 2013, 10:07 AM ET
This stunning space wallpaper reveals W3, which is an enormous stellar nursery about 6200 light-years away in the Perseus Arm, one of the Milky Way galaxy’s main spiral arms, that hosts both low- and high-mass star formation.
23 April 2013, 11:40 PM ET
This ghostly space wallpaper shows an object known as HH 151, a bright jet of glowing material trailed by an intricate, orange-hued plume of gas and dust.
22 April 2013, 11:32 PM ET
This beautiful wallpaper shows Shenandoah National Park in Virginia. Gazing across the horizon from the peaks of Shenandoah it’s hard to believe you are just 75 miles from the bustle of our nation’s capital.
21 April 2013, 11:34 PM ET
The object in this fascinating space wallpaper is Jonckheere 900 or J 900, a planetary nebula — glowing shells of ionised gas pushed out by a dying star.
19 April 2013, 08:43 AM ET
This space wallpaper is a mosaic showing part of the Noctis Labyrinthus region, the ‘Labyrinth of the Night’, on Mars. It was composed by Bill Dunford using scenes available in the Mars Express image archive, HRSC view.
18 April 2013, 02:10 AM ET
This wallpaper shows Death Valley National Park in California and Nevada. It is superlative desert of streaming sand dunes, snow-capped mountains, multicolored rock layers, water-fluted canyons and three million acres of stone wilderness.
16 April 2013, 10:35 PM ET
This amazing space wallpaper reveals 30 Doradus, which is the brightest star-forming region in our galactic neighborhood and home to the most massive stars ever seen.
16 April 2013, 12:55 PM ET
This wallpaper shows Carlsbad Caverns National Park in New Mexico. The park contains 113 of caves, which formed when sulfuric acid dissolved the surrounding limestone, creating some of the largest caves in North America.
15 April 2013, 12:47 PM ET
This amazing space wallpaper from ESO’s Very Large Telescope at the Paranal Observatory in Chile shows NGC 1637, a spiral galaxy located about 35 million light-years away in the constellation of Eridanus (The River).
12 April 2013, 02:10 PM ET
This stunning wallpaper shows Voyageurs National Park in Minnesota. Voyageurs is a water-based park where you must leave your car and take to the water to fully experience its lakes, islands and shorelines.
11 April 2013, 10:19 AM ET
This stunning space wallpaper reveals ALMA antennae bathed in red light. Appearing in the background are the southern Milky Way on the left and the Magellanic Clouds at the top. This image was released March 5, 2013.
10 April 2013, 10:23 AM ET
This wallpaper shows Yellowstone National Park, which was established in 1872 making it America's first national park. Located in Wyoming, Montana, and Idaho, it is home to a large variety of wildlife including grizzly bears, wolves, bison, and elk.