02 October 2014, 01:55 PM ET
The bright, hazy smudge at the center of this space wallpaper is a comet known as 67P/Churyumov-Gerasimenko, or 67P/C-G for short.
01 October 2014, 02:06 PM ET
This space wallpaper shows a night of observing the Northern Celestial Pole from the Allgäu Public Observatory in Ottobeuren, Germany.
29 September 2014, 03:44 PM ET
After sunset this evening, look 15 degrees up from the southwest horizon. There you’ll see a crescent moon, 30 percent illuminated. Hovering almost directly below it will be Mars, which looks like a moderately bright yellow-orange star.
29 September 2014, 07:00 AM ET
The close-orbiting alien planet, known as WASP-18b, is apparently disrupting the magnetic field of its host star so much that the object is behaving like a much older star, researchers said.
26 September 2014, 03:30 PM ET
Among the nearly 2,000 planets found beyond our solar system, there are volcanic super-Earths, gas giants that dwarf Jupiter and worlds with multiple sunsets. Here are some of the most incredible.
25 September 2014, 10:56 AM ET
A stunning new photo snapped by NASA's Hubble Space Telescope shines a light on a mysterious galaxy that may be considerably older than it looks.
25 September 2014, 10:00 AM ET
A study of galaxy DDO 68 (aka UGC 5340) using the Hubble Space Telescope has revealed that there may be older stars lurking in what was thought to be a primordial galaxy.
24 September 2014, 10:39 PM ET
The stars appear to rain onto the surrounding mountains, as seen in this space wallpaper taken on May 21, 2013 by Diana Juncher in the Atacama Desert in Chile.
24 September 2014, 07:30 AM ET
Researchers using data gathered by NASA's Hubble Space Telescope have determined that the supernova SN 1993J — which was first observed in 1993, as its name suggests — occurred because one star nabbed hydrogen from another.
19 September 2014, 10:00 AM ET
The Chile-based Atacama Large Millimeter/submillimeter Array (ALMA) and other telescopes employed a sort of cosmic magnifying glass to look at details of a galaxy called H1429-0028, revealing that the object is actually two merging galaxies.
19 September 2014, 08:30 AM ET
The galaxy lies 11 billion light-years from Earth, so viewing it gives astronomers a glimpse into processes that occurred less than 3 billion years after the Big Bang that created the universe.
18 September 2014, 01:39 PM ET
The gas giant WASP-18b, 10X larger that Jupiter, orbits its relatively young parent star in just 23 hours. With the planet that close, the star’s magnetic field may be damped so much it is emitting x-rays at old age star rates.
18 September 2014, 12:23 AM ET
This stunning space wallpaper from the VLT Survey Telescope at ESO’s Paranal Observatory in northern Chile shows the globular cluster Messier 54. This cluster looks very similar to many others, but it has a secret.
17 September 2014, 12:05 AM ET
The Wide Field Imager (WFI) on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile captured this space wallpaper of dark cloud Lupus 4 blotting out background stars.
15 September 2014, 10:34 PM ET
This space wallpaper reveals the celestial fireworks deep inside the core of a developing galaxy in the young Universe, as seen from a hypothetical planetary system.
12 September 2014, 12:32 AM ET
ALMA and many other telescopes on the ground and in space have been used to obtain the best view yet of a collision that took place between two galaxies when the Universe was only half its current age, as seen in this spectacular space wallpaper.
10 September 2014, 10:21 PM ET
This space wallpaper from the NASA/ESA Hubble Space Telescope shows the galaxy cluster MCS J0416.1–2403.
10 September 2014, 12:44 AM ET
This space wallpaper from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile shows two dramatic star formation regions in the southern Milky Way.
09 September 2014, 06:44 AM ET
New research shows that an object, known as WISE J0304-2705 and classified as a Y dwarf, may have begun its evolution with a temperature as hot as a red dwarf star before settling on its present temperature, which is similar to Venus.
07 September 2014, 11:52 PM ET
The NASA/ESA Hubble Space Telescope has snapped the best ever image of the Antennae Galaxies.
05 September 2014, 11:51 PM ET
The VLT Survey Telescope at ESO’s Paranal Observatory in Chile has captured this beautifully detailed space wallpaper of the galaxy Messier 33, often called the Triangulum Galaxy.
04 September 2014, 09:34 PM ET
This stunning space wallpaper shows a striking pair of wildly misaligned planet-forming gas discs around both the young stars in the binary system HK Tauri.
03 September 2014, 11:21 PM ET
In this amazing space wallpaper from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile young stars huddle together against a backdrop of clouds of glowing gas and lanes of dust.
28 August 2014, 02:56 PM ET
A new measurement, which used quasars as bright and consistent relative-distance markers, charted the famous "Seven Sisters" star cluster at 136.2 parsecs, or 444 light-years, away from Earth.
28 August 2014, 02:01 PM ET
The researchers detected a huge disk of dusty debris around a sunlike star called NGC-2547 ID8. The cloud was likely spawned when two planetary building blocks slammed into each other just two years ago or so, scientists said.
28 August 2014, 11:56 AM ET
Skywatcher Kevin Fetter of Brockville, Ontario in Canada captured imagery of the US Air Force's X-37B passing above the moon and over bright star Rigel in March 2014. He also captured an overhead pass in August 2014.
27 August 2014, 03:29 PM ET
Power winds emanating from the binary system's stars interact and are being studied with the help of Chandra X-ray Observatory imagery. The system harbors one of the largest and brightest stars in the Milky Way.
27 August 2014, 01:01 PM ET
Stars are giant fusion reactors, smashing protons together to produce energy.
21 August 2014, 04:05 PM ET
Late summer is one of the best times of year to view the full splendor of our galaxy, the Milky Way. Seeing the Milky Way requires a special effort for most of us, but it's well worth the trouble.
21 August 2014, 02:02 PM ET
An ancient star in the halo surrounding the Milky Way galaxy appears to contain traces of material released by the death of one of the universe's first stars, a new study reports.
19 August 2014, 11:06 AM ET
Astrophysicists have analyzed two decades-worth of X-ray data and discovered three events inside galactic cores that can be interpreted in only one way: stellar destruction.
18 August 2014, 02:47 PM ET
'Super-Earth' Kepler 93 b is a rocky world about 3.8 times Earth’s mass, Sarah Ballard’s team determined, by integrating the parent star’s light curve with its 'asteroseismic' signature.
Full Story: http://goo.gl/Y9ue2f
14 August 2014, 02:23 PM ET
Through the analysis of light from distant galactic clusters, astronomers have detected a mysterious signal that they're having a hard time explaining.
14 August 2014, 02:01 PM ET
Scientists have created the first 3D map of a type of astronomical interference that has puzzled astronomers for nearly a century. The new map could help scientists finally nail down what causes the interference.
07 August 2014, 02:01 PM ET
Black holes may have grown incredibly rapidly in the newborn universe, perhaps helping explain why they appear so early in cosmic history. Early black hole may have sucked matter in from all around, rather than just from an accretion disk.
07 August 2014, 02:01 PM ET
The solar system coalesced from a huge cloud of dust and gas that was isolated from the rest of the Milky Way galaxy for up to 30 million years before the sun's birth, a new study published online today (Aug. 7) in the journal Science suggests.