28 March 2014, 10:12 AM ET
A new Hubble image, captured on March 11, shows what appear to be two jets of dust coming off the nucleus of Comet Siding Spring, which on Oct. 19 will miss Mars by just 84,000 miles — about one-third the distance between Earth and the moon.
28 March 2014, 09:59 AM ET
The Large Magellanic Cloud is one of the closest galaxies to our own. Astronomers have used ESO’s Very Large Telescope to explore NGC 2035, one of its lesser known regions, in great detail as seen in this stunning space wallpaper.
28 March 2014, 04:07 AM ET
For rocket engineer Edward Miyashiro, inspiration came from the space race and a curious mind — but do U.S. students have the inspiration to eventually take his place?
27 March 2014, 09:42 AM ET
The mysterious dark energy that's driving the universe's accelerated expansion may have its roots in the background "vacuum energy" that pervades all of the cosmos, a new study suggests.
26 March 2014, 06:24 PM ET
Astronomers at ESO have captured the best image so far of the curious clouds around the star cluster NGC 3572 as seen in this spectacular space wallpaper.
26 March 2014, 05:55 PM ET
Scientists have made a stunning discovery in the outer realm of the solar system — an asteroid with its own set of rings that orbits the sun between Saturn and Uranus.
26 March 2014, 05:43 PM ET
Shimmering rainbow colors were captured on camera above Venus, marking the first time a so-called "glory" was pictured on another planet besides Earth. The phenomenon also pointed to a mystery in the hothouse planet's atmosphere.
26 March 2014, 05:15 PM ET
The newfound object, called 2012 VP113, joins the dwarf planet Sedna as a resident of a far-flung region called the "inner Oort Cloud." Further, 2012 VP113 and Sedna may have been pulled into their odd orbits by a big, undiscovered planet.
25 March 2014, 02:14 PM ET
This sprinkling of cosmic glitter makes up the galaxy known as ESO 149-3, located some 20 million light-years away from us, as seen in this stunning space wallpaper.
25 March 2014, 01:10 PM ET
Curiosity is just 282 feet north of a site called "the Kimberley," where four different types of terrain intersect. The rover's handlers are keen to study the Kimberley rocks and may even break out Curiosity's sample-collecting drill at the site.
25 March 2014, 12:58 PM ET
Volunteers with no astronomy experience can pick out craters on the moon as accurately as a researcher with five to 50 years' experience, a new study reports. The finding could give a further boost to the use of citizen scientists in research projects.
25 March 2014, 12:58 AM ET
Capturing the world's most famous comet from the Florida Keys, Victor Rogus was inspired for a lifetime of astronomy.
24 March 2014, 12:10 PM ET
The big blob-like structure shown in this space wallpaper, named Himiko after the legendary ancient queen of Japan, turns out to be three galaxies thought to be in the process of merging into one.
21 March 2014, 04:00 PM ET
A new telescope tool for peering into the cosmos and creating three-dimensional views of the universe has passed its first major test at a European observatory in Chile's high desert.
21 March 2014, 12:08 PM ET
Space.com caught up with John Kovac recently to talk about his team's detection of gravitational waves, the find's implications and what the discovery means to him and his team on a personal level.
21 March 2014, 12:03 PM ET
NASA is distancing itself from a new study that investigates how resource exploitation andincome inequality could lead to the collapse of civilization. The paper just used research tools developed for other NASA activities, agency officials say.
21 March 2014, 11:55 AM ET
The confirmation of cosmic inflation gives researchers a new window onto a realm of extreme physics, potentially aiding their quest to devise a theoretical framework that can explain all aspects of the universe.
21 March 2014, 10:54 AM ET
This space wallpaper shows an unusually bright gamma-ray burst, which produced a jet that emerged at nearly the speed of light. Gamma-ray bursts are the most powerful type of explosions in the universe and typically mark the destruction of a massive star.
20 March 2014, 01:52 PM ET
Spring has officially sprung in the Northern Hemisphere and NASA is celebrating with a dazzling new view of the Earth from space today (March 20).
20 March 2014, 01:05 PM ET
The new infrared mosaic from Hubble shows knotty curls of dust and gas in the Monkey Head Nebula, a star-forming region that lies about 6,400 light-years away from Earth and is also known as NGC 2174 and Sharpless Sh2-252.
19 March 2014, 06:17 PM ET
The new mosaic — which was captured by NASA's Lunar Reconnaissance Orbiter — resolves features as small as 6.5 feet, providing information that could be used for landing-site scouting or to answer various questions about the lunar surface.
19 March 2014, 11:23 AM ET
From space tourism to mining asteroids, space exploration has entered the commercial era. Tonight, aerospace industry leaders and space historians will gather at the American Museum of Natural History for a live debate about "selling space."
19 March 2014, 11:16 AM ET
The sun sets behind BICEP2 (in the foreground) and the South Pole Telescope (in the background) in this stunning space wallpaper.
18 March 2014, 12:45 PM ET
As galaxies speed through gigantic cauldrons, they occasionally jumble the gas and forge it into lop-sided shapes. An example is revealed in this space wallpaper, which is a composite image of the galaxy group NGC 5044.
18 March 2014, 09:31 AM ET
The first direct evidence of cosmic inflation — a rapid period of expansion that occurred a fraction of a second after the Big Bang — could also help support the idea that this universe exists in a multiverse, scientists suggest.
18 March 2014, 09:25 AM ET
The find suggests that space-time really did expand at many times the speed of light in the first few tiny fractions of a second after the Big Bang, as predicted by the theory of cosmic inflation, researchers say.
17 March 2014, 05:07 PM ET
The Nobel laureate talks about the apparent detection of gravitational wave signatures in the cosmic microwave background radiation, as well as what it was like to spot the CMB in 1964, putting the Big Bang theory on solid ground.
17 March 2014, 12:49 PM ET
The Dasht-e Lut salt desert in southeast Iran is captured in this stunning space wallpaper. The desert is often called the ‘hottest place on Earth’ as satellites measured record surface temperatures there for several years.
17 March 2014, 12:11 PM ET
Astronomers have found the first direct evidence of cosmic inflation, the theorized dramatic expansion of the universe that put the "bang" in the Big Bang 13.8 billion years ago. The find also confirms the existence of gravitational waves.
17 March 2014, 12:09 PM ET
Evidence that the universe rapidly expanded in its first few nanoseconds has been found by an instrument in Antarctica: Gravitational waves, which have long eluded astronomers, were spotted, supporting this cosmic inflation model.
14 March 2014, 10:49 AM ET
As anchor of National Geographic Channel’s two hour special on March 14th, 2014 at 8pm EST, O’Brien will turn to astronauts Mike Massimino for color commentary on the ground while talking with Rick Mastracchio and Koichi Wakata on ISS.
14 March 2014, 09:37 AM ET
This beautiful space wallpaper is a photo illustration based on a Hubble Space Telescope survey of evolving Milky Way-type galaxies. The current night sky is dominated by the white glow of myriad middle-aged stars along the lane of the Milky Way.