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.
10 February 2014, 01:42 PM ET
This vivid space wallpaper shows a region of the planet’s northern hemisphere known as Hephaestus Fossae – after the Greek god of fire – that was imaged by the high-resolution stereo camera on ESA’s Mars Express orbiter on Dec. 28, 2007.
07 February 2014, 02:20 PM ET
This north-looking space wallpaper, acquired on Jan. 4, 2014, by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft, shows the Sochi Olympic Park Coastal Cluster in Russia.
07 February 2014, 07:11 AM ET
Using data from the Hubble Space Telescope and other observatories, astronomers are learning why some massive galaxies hit their peak young and quit making stars when the universe was less than a quarter of its current age.
06 February 2014, 11:24 AM ET
A dramatic, fresh impact crater on Mars dominates this spectacular space wallpaper taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter on Nov. 19, 2013.
05 February 2014, 12:05 PM ET
The faint spot at the center of this space wallpaper from ESO's Very Large Telescope is the Near-Earth Object 2009 FD. It may look insignificant, but there was a possibility that this asteroid would collide with the Earth in the future.
04 February 2014, 02:12 PM ET
This stunning space wallpaper shows a rainbow of lunar transits as seen by NASA's Solar Dynamics Observatory. The observatory watches the sun in many different wavelengths of light, which are each colorized in a different color.
04 February 2014, 11:53 AM ET
The James Webb Space Telescope will be able to spot multiple objects at the same time with its NIRspec instrument, the first for a satellite spectrometer.
03 February 2014, 01:34 PM ET
This space wallpaper is an artist's impression based on the first ever map of the weather on the surface of the nearest brown dwarf to Earth.
31 January 2014, 10:39 AM ET
The left-front wheel of NASA's Curiosity Mars rover shows dents and holes in this cool space wallpaper taken during the 469th Martian day, or sol, of the rover's work on Mars (Nov. 30, 2013).
31 January 2014, 08:31 AM ET
NASA sponsored DiskDetective.org allows the public to sift through data from the Wide-field Infrared Survey Explorer (WISE) mission to discover embryonic planetary systems. WISE has measurements of more that 745 million objects to be investigated.
31 January 2014, 06:40 AM ET
Using a telescope for the first time isn't always as easy as it sounds, but fear not! This primer will get you started so you can not only enjoy 'first light,' but also get your new scope ready for searching out countless wonders in the night sky.
30 January 2014, 04:10 PM ET
This space wallpaper shows a NASA NEOWISE mission image of comet C/2013 A1 Siding Spring, which is slated to make a close pass by Mars on Oct. 19, 2014.
29 January 2014, 10:31 AM ET
This stunning space wallpaper shows the Whirlpool Galaxy, also known as M51 or NGC 5194, which is one of the most spectacular examples of a spiral galaxy.
29 January 2014, 06:48 AM ET
The night sky is becoming brighter and brighter, thanks to human population growth and inefficient, improperly installed lighting. But you can help stem this tide.
28 January 2014, 09:47 AM ET
The cosmic doppelgangers seen in the fascinating space wallpaper make up a double quasar known as QSO 0957+561, also known as the "Twin Quasar", which lies just under 14 billion light-years from Earth.
27 January 2014, 11:06 AM ET
This stunning space wallpaper is a false-color image from Japan’s ALOS satellite acquired over part of southern Kenya and the border with Tanzania. Mount Kilimanjaro in Tanzania can be seen in the lower-left corner.
24 January 2014, 10:01 AM ET
More than 100 asteroids were captured in this fascinating space wallpaper from NASA's Wide-field Infrared Survey Explorer, or WISE, during its primary all-sky survey.
23 January 2014, 05:22 PM ET
This cool space wallpaper shows a prototype Polish-built plasma thruster during test firing within an airless chamber at ESA’s Propulsion Laboratory.
22 January 2014, 10:20 AM ET
The VLT Survey Telescope at ESO's Paranal Observatory in Chile has captured this richly detailed space wallpaper of the Lagoon Nebula. This giant cloud of gas and dust is creating intensely bright young stars, and is home to young stellar clusters.
22 January 2014, 06:00 AM ET
110 light-years across and 5000 lights year from Earth, the Lagoon Nebula (M8, NGC 6523) is one of just two star-forming regions visible to the unaided eye from the northern hemisphere. Europe's VLT Survey Telescope in Chile capture these images.
21 January 2014, 02:16 PM ET
This space wallpaper is an artist's illustration showing one of three newly discovered planets in the star cluster Messier 67. Image released Jan. 15, 2014.
21 January 2014, 01:04 PM ET
Scientists hope that in just a few months they may get a confirmation of whether accelerated expansion of the universe did indeed take place in the first fleeting moments after the Big Bang.
17 January 2014, 10:07 AM ET
This new Hubble image shows a cosmic creepy-crawly known as the Tarantula Nebula in infrared light. This region is full of star clusters, glowing gas, and thick dark dust. Image released Jan. 9, 2014.
16 January 2014, 09:34 AM ET
This fascinating space wallpaper is an artist's concept of the MWC 656 system, which consists of a massive "Be" star and a companion black hole.
15 January 2014, 03:46 PM ET
This space wallpaper is a Hubble image showing the scatterings of bright stars and thick dust that make up spiral galaxy Messier 83, otherwise known as the Southern Pinwheel Galaxy.
14 January 2014, 03:20 PM ET
This space wallpaper shows a series of observations performed with the ESA/NASA Solar and Heliospheric Observatory (SOHO) to study the evolution of reconnection jets on a small patch of the Sun’s surface.
14 January 2014, 12:29 PM ET
By surrounding their star with swarms of energy-collecting satellites, advanced civilizations could create Dyson spheres.
14 January 2014, 10:00 AM ET
The star Proxima Centauri represents our nearest stellar neighbor in the universe.
13 January 2014, 01:00 PM ET
The Hubble Space Telescope has captured an image of a star engulfed in a hazy nebula, destined to explode into a supernova one day.
13 January 2014, 01:24 AM ET
This space wallpaper shows the remnant of Supernova 1987A seen in light of very different wavelengths.
10 January 2014, 03:09 PM ET
Floating at the center of this cool space wallpaper is a lidless purple eye, staring back at us through space. This ethereal object, known officially as [SBW2007] 1 but sometimes nicknamed SBW1, is a nebula with a giant star at its center.
09 January 2014, 04:30 PM ET
The stunning space wallpaper depicts a pulsar wind nebula, produced by the dense remnant of a star that exploded in a supernova. What's left behind is a pulsar, called PSR B1509-58 (B1509 for short).
09 January 2014, 02:58 PM ET
Photographer Nicholas Buer (@NicholasBuer, facebook.com/NicholasBuerPhotography) created this timelapse in the high desert region of Chile known as San Pedro de Atacama, a place revered by astronomers for having some of Earths cleanest, darkest skies
09 January 2014, 02:36 PM ET
Just a few hundred thousand times our Sun's mass, the hungry singularity in dwarf galaxy 47 Abell 1795 munched on a nearby star for at least 6 years, while the Chandra X-ray Observatory watched.