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11 March 2014, 04:08 PM ET
A nearly full Rhea shines in the sunlight in this stunning space wallpaper taken in visible light with the Cassini spacecraft’s narrow-angle camera on Sept. 10, 2013. Rhea (949 miles, or 1,527 kilometers across) is Saturn's second largest moon.
11 March 2014, 04:01 PM ET
NASA's Mars Reconnaissance Orbiter switched over to safe mode after unexpectedly swapping from one main computer to another. The glitch has suspended science operations, but mission officials are confident the probe can return to service soon.
11 March 2014, 01:43 PM ET
The launch of Fox's "Cosmos" TV series reboot on 10 different networks Sunday (March 9) attracted in 8.5 million viewers according to a Neilsen ratings summary, the Los Angeles Times reports today.
11 March 2014, 01:18 PM ET
Space lovers around the world are getting ready to revel in the excitement of human spaceflight on Yuri's Night, April 12. This year, the celebration's organizers will hold a "catalyst" competition, promising prizes for a host and an event catalyst.
11 March 2014, 11:54 AM ET
NASA's Asteroid Grand Challenge is asking citizen scientists to improve how we identify asteroids. The contest runs through August 2014.
11 March 2014, 11:03 AM ET
Engineers check out the world's first communication satellite known as the Early Bird.
11 March 2014, 10:58 AM ET
SpaceX fired up the nine-engine first stage of a Falcon 9 rocket Saturday in a major preflight rehearsal before the March 16 launch of nearly 5,000 pounds of experiments and supplies to the International Space Station.
11 March 2014, 08:40 AM ET
Bright Venus rises and the Milky Way dazzles over the light-polluted skies above Singapore in this rare image recently sent to Space.com. See how the photographer did it.
11 March 2014, 07:00 AM ET
Astronauts on the International Space Station are going to beam into homes around the world during a live TV event this week.
10 March 2014, 11:28 PM ET
A Soyuz spacecraft carrying NASA astronaut Mike Hopkins and cosmonauts Oleg Kotov and Sergey Ryazanskiy touched down on the steppes of Kazakhstan at 11:24 p.m. EDT Monday, about 3 1/2 hours after leaving the International Space Station.
10 March 2014, 08:27 PM ET
NASA astronaut Mike Hopkins and Russian cosmonauts Oleg Kotov and Sergey Ryazanskiy left the station in a Soyuz spacecraft at 8:02 p.m. EDT Monday (March 10; 0002 GMT on March 11), wrapping up a 166-day orbital stint.
10 March 2014, 07:16 PM ET
Astronomers observing with the Anglo-Australian Telescope have found a strangely arranged population of faint galaxies penetrating what were thought to be huge empty regions of space. Termed 'tendrils' these strings of matter may interconnect.
10 March 2014, 06:30 PM ET
The moon sets over the Atlantic Ocean in this beautiful photo and timelapse video taken by photographer Miguel Claro in Portugal. See how the photographer captured the scene.
10 March 2014, 06:03 PM ET
The oceans became a lethal sulfuric-acid stew after the huge asteroid impact that wiped out the dinosaurs some 65 million years ago, a new study suggests.
10 March 2014, 05:34 PM ET
This newly-released observation of Saturn's second largest moon could be mistaken for our own moon hanging in the night sky.
10 March 2014, 05:29 PM ET
See photos from the March 10, 2014 landing of the a Russian Soyuz TMA-10 spacecraft carrying NASA astronaut Mike Hopkins and Russian cosmonauts Oleg Kotov and Sergey Ryazanskiy to wrap up a 166-day space mission.
10 March 2014, 05:04 PM ET
Final preparations are now underway for the launch of SpaceX's third Dragon cargo flight to the International Space Station, including the reveal of the company's official patch for the NASA-contracted Commercial Resupply Services 3 (CRS-3/SpX-3) mission.
10 March 2014, 04:34 PM ET
Officials are concerned about wintry conditions on the steppes of Kazakhstan, where the Soyuz is slated to touch down about three hours later. Indeed, the landing team commission began meeting today at 4 p.m. EDT (2000 GMT) to discuss the situation.
10 March 2014, 03:42 PM ET
Even the president of the United States is into the new 'Cosmos.' President Barack Obama introduced 'Cosmos: A Spacetime Odyssey' last night (March 9) during the FOX premiere of the new show, a reboot of Carl Sagan's original 'Cosmos' series.
10 March 2014, 03:12 PM ET
Urging all Americans to open their imaginations to discoveries yet unmade, the President of the United States introduced the premiere episode of 'Cosmos: A Spacetime Odyssey' on March 9th, 2014.
10 March 2014, 02:26 PM ET
The premiere of the new "Cosmos" series got a nod from the astronauts aboard the International Space Station. In a video beamed from space, NASA astronaut Rick Mastracchio shows how Newton's third law of motion works in microgravity.
10 March 2014, 11:58 AM ET
An American astronaut and two Russian cosmonauts will return to Earth tonight aboard a Soyuz space capsule tonight (March 10) after more than five months in orbit, and you can watch their landing live online.
10 March 2014, 11:33 AM ET
Only 12 million years old, or less than three-thousandths of the age of the Sun, Beta Pictoris, as seen in this space wallpaper, is 75 percent more massive than our parent star.
10 March 2014, 09:27 AM ET
Neil DeGrasse Tyson, the host of the re-envisioned show, introduces a zero-gravity demonstration of Newton's third law of motion. Expedition 38's Rick Mastracchio and Koichi Wakata prove the law aboard the International Space Station.
10 March 2014, 08:28 AM ET
The International Space Station has its first Japanese commander, Koichi Wakata of the Japan Aerospace Exploration Agency. 'I am humbled to assume command of the space station,' Wakata said during a ceremony on board the orbiting outpost.
10 March 2014, 08:00 AM ET
Against a backdrop of sleek graphics and astronomical imagery, host Neil deGrasse Tyson brought a new generation of "Cosmos" viewers up to speed about our place in the universe.
10 March 2014, 08:00 AM ET
Researchers are developing flat, blanket-size landers that could be delivered en masse to worlds such as Mars or Jupiter's moon Europa. The approach could enable NASA to mount missions to places previously deemed too risky to explore, researchers say.
09 March 2014, 12:12 PM ET
An asteroid the size of a skyscraper will make a distant flyby of Earth this week, and you watch astronomers track the space rock tonight (March 9) in a live webcast, weather permitting. The asteroid poses no threat to Earth.
09 March 2014, 03:36 AM ET
Famed astronomer Carl Sagan shared the universe with millions with 1980's 'Cosmos.' That legacy lives on with 'Cosmos: A Spacetime Odyssey' hosted by Neil deGrasse Tyson, which premieres March 9 on Fox.
08 March 2014, 04:16 PM ET
What was your favorite space news story of the last week?
08 March 2014, 01:17 PM ET
From a disintegrating asteroid to space junk cleanup, don't miss these amazing space images of the week for March 8, 2014.
08 March 2014, 12:36 PM ET
From amazing auroras to an orange supergiant star, don't miss these spectacular night sky images by stargazers and Space.com readers.