19 July 2013, 02:21 PM ET
This space wallpaper showcases the ancient globular cluster 47 Tucanae, a dense swarm of up to a million stars. The image at left shows the entire cluster, which measures about 120 light-years across.
17 July 2013, 04:30 PM ET
A night sky photographer takes a stunning photo of an aurora over Mt. Katahdin in Maine.
17 July 2013, 02:43 PM ET
In this space wallpaper—among a crowd of face- and edge-on spiral, elliptical, and irregular galaxies in the constellation of Virgo—lies NGC 4866, which is a lenticular galaxy situated about 80 million light-years from Earth.
15 July 2013, 04:13 PM ET
Observations of the dark cloud SDC 335.579-0.292 using the Atacama Large Millimeter/submillimeter array (ALMA) have given astronomers the best view yet of a monster star in the process of forming, as seen in this stunning space wallpaper.
15 July 2013, 09:08 AM ET
Observations of planetary nebula NGC 2392 by the Chandra and Hubble Space Telescopes reveals the complexities of the death of a star like our own. The Sun still has about 5 billion years before it suffers a similar fate.
10 July 2013, 05:02 PM ET
A giant radio telescope in Chile has captured amazing baby photos of what will eventually be a colossal star 11,000 light-years from Earth. Even more shocking: It's still growing, scientists say.
09 July 2013, 11:44 AM ET
This NASA/ESA Hubble Space Telescope space wallpaper shows the planetary nebula IC 289, located in the northern constellation of Cassiopeia.
09 July 2013, 07:00 AM ET
Night sky photographer Mike Taylor snaps two stunning images of the Milky Way over rural Maine. See how the veteran astrophotographer did it and with what equipment in this space photos glimpse.
08 July 2013, 09:40 AM ET
A look at these weird, light-gobbling cosmic monsters.
08 July 2013, 09:16 AM ET
This fascinating space wallpaper is an artist’s impression showing light from the heart of a background galaxy, which allowed scientists to explore how galaxies refuel.
05 July 2013, 11:33 AM ET
A bright quasar shining through the gas around another galaxy provides insight into galactic feeding habits.
05 July 2013, 10:23 AM ET
The Andromeda Galaxy, the closest galaxy to our own Milky Way, gets the star treatment in this dazzling photo by amateur astronomer and photographer Lorenzo Comolli. See how he snapped the amazing galaxy photo here.
03 July 2013, 03:43 PM ET
This fascinating space wallpaper reveals a nearby star that at first glance looks like it is older than the universe. This "Methuselah star," cataloged as HD 140283, could be as old as 14.5 billion years.
03 July 2013, 11:37 AM ET
Using an innovative process that combines hundreds of flat 2D space photos, the upcoming IMAX movie 'In Saturn's Rings' brings depth to awe inspiring photos of planets and galaxies, allowing viewers to 'fly through' these cosmic wonders.
03 July 2013, 07:00 AM ET
Veteran solar photographer Alan Friedman captured this strange view of Earth's star as blue sun.
02 July 2013, 05:08 PM ET
Photographer Jason Hines snapped this spectacular photo of the supermoon full moon over the Grand Canyon on June 23, 2013.
02 July 2013, 04:45 PM ET
What looks like a celestial hummingbird in this stunning space wallpaper is really the result of a collision between a spiral and an elliptical galaxy at a whopping 326 million light- years away.
01 July 2013, 08:12 AM ET
Here's what humanity would have to do to reach a star in less than 100 years.
01 July 2013, 07:09 AM ET
See photos of galaxies across the universe from NASA's Galaxy Evolution Explorer, or GALEX, space telescope, which launched in 2003 and shut down in 2013.
01 July 2013, 07:00 AM ET
After 10 years in orbit, NASA's GALEX mission is now over. The Galaxy Evolution Explorer mission began in 2003 and officially shut down in 2013.
27 June 2013, 02:01 PM ET
The 36-year-old spacecraft is exploring new realms at the solar system's edge.
26 June 2013, 10:22 AM ET
A previously unsuspected tidal dwarf galaxy candidate (upper left) appears only in the ultraviolet, indicating the presence of many hot young stars as seen in this cool space wallpaper.
24 June 2013, 09:30 AM ET
Looking towards the constellation of Triangulum (The Triangle), in the northern sky, lies the galaxy pair MRK 1034 as seen in this space wallpaper.
21 June 2013, 10:43 AM ET
The NASA/ESA Hubble Space Telescope has captured this cool space wallpaper of nearby spiral galaxy Messier 61, also known as NGC 4303. In this image the galaxy is seen face-on as if posing for a photograph, allowing us to study its structure closely.
20 June 2013, 02:03 PM ET
Two massive galaxies in the process of a violent merger were snapped by the Hubble space telescope in a formation that looks uncannily like a penguin guarding its egg.
18 June 2013, 10:23 AM ET
The contorted object captured by Hubble in this cool space wallpaper is IRAS 22491-1808, also known as the South America Galaxy. It is an ultraluminous infrared galaxy (ULIRG) that emits a huge amount of light at infrared wavelengths.
17 June 2013, 10:06 AM ET
A star of low luminosity (called WX UMa) was seen growing brighter in matter of 160 seconds. It was recorded by astrophysicits at the University of Santiago de Compostela (Spain) and the Byurakan Observatory (Armenia) and is 15.6 light-years away.
17 June 2013, 06:20 AM ET
A normally dull star in Ursa Major gave off an incredible flare.
06 June 2013, 04:35 PM ET
These pioneers may have served as seeds for the supermassive black holes at the hearts of galaxies today.
06 June 2013, 05:42 AM ET
The Knife Edge Galaxy is also known as the Splinter Galaxy.
05 June 2013, 10:16 AM ET
The Atacama Large Millimeter/sub-millimeter Array (ALMA) has imaged a 'dust trap' around a young star where particles clump together to create icy & rocky bodies. The system called Oph-IRS 48 is 400 light-years away in the Ophiuchus constellation.
04 June 2013, 06:30 AM ET
Stars should be at least 8.7 percent as wide as our own sun, researchers say.
03 June 2013, 05:04 PM ET
A star smaller than Jupiter regularly fires off flares as powerful as the biggest eruptions from our sun.
03 June 2013, 03:25 PM ET
Using NASA's Swift satellite, astronomers at NASA and Pennsylvania State University created the most detailed ultraviolet light surveys of the Large and Small Magellanic Clouds, the two closest major galaxies, in a mosaic 14,000 light-years across.
03 June 2013, 02:15 PM ET
Astronomers are witnessing a cosmic death on a galactic scale
30 May 2013, 02:38 PM ET
The small, blue galaxy visible in the upper left corner of the Tadpole ripped through the larger spiral galaxy, distorting it and pulling out a long tail of stars, gas and dust as seen in this cool space wallpaper.