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15 October 2014, 01:05 PM ET
Star formation in the early universe may not have been as plentiful as it is today.
15 October 2014, 12:03 PM ET
With an icy comet lurking just over its shoulder, a far-flung European spacecraft snapped a selfie in outer space.
15 October 2014, 10:31 AM ET
See amazing images by dedicated night sky observers and amateur astronomers alike.
15 October 2014, 09:16 AM ET
Astronomers peering onto the early Universe with Chile’s APEX are seeing star-birth in unexpected parts of this by long-studied proto-cluster, formerly called MRC-1138-262; the ‘Spiderweb galaxy.’This artistic impression is drawn from their finding
15 October 2014, 07:50 AM ET
An excerpt from Marc Kaufman's "Mars Up Close: Inside the Curiosity Mission," which was published in August 2014 by National Geographic.
15 October 2014, 06:41 AM ET
Two NASA astronauts will venture into the vacuum of space for a spacewalk on the outside of the International Space Station today (Oct. 15), and anyone with an Internet connection can watch it live online.
14 October 2014, 11:51 PM ET
In this space wallpaper, sitting atop Cerro Paranal high above the Atacama Desert in Chile, two of the Very Large Telescope's Unit Telescopes quietly bask in the starlight, observing the Milky Way as it arches over ESO's Paranal Observatory.
14 October 2014, 05:49 PM ET
At first glance you'd be forgiven for thinking NASA's Mars rover Curiosity had stumbled across a wind-rippled lake or sea at the base of Mount Sharp.
14 October 2014, 05:33 PM ET
NASA's MAVEN Mars orbiter has been busy since it arrived at the Red Planet late last month, collecting detailed data about Mars' upper atmosphere.
14 October 2014, 03:28 PM ET
Canadian astronaut Chris Hadfield shares his favorite images of Earth from space in a new book, "You Are Here: Around the World in 92 Minutes."
14 October 2014, 12:49 PM ET
Boo! An amazing new photo taken by a NASA spacecraft seems to show the sun with creepy jack-o-lantern grin just in time for Halloween.
14 October 2014, 07:37 AM ET
Scientists previously thought that the moon's volcanic activity died down a billion years ago. But new data from NASA's Lunar Reconnaissance Orbiter, or LRO, hints that lunar lava flowed much more recently, perhaps less than 100 million years ago.
14 October 2014, 07:00 AM ET
The upcoming launch, expected to take place Oct. 23 from China's Xichang Satellite Launch Center, will apparently send an experimental, recoverable probe to lunar orbit and back to validate tech needed for a lunar sample-return mission.
14 October 2014, 07:00 AM ET
Models using a century-old equation suggest that the Milky Way contains only half the dark matter than scientists had previously thought.
14 October 2014, 06:50 AM ET
A new photo of a huge galaxy cluster under construction in the early universe shows star formation happening in unexpected places, scientists have found.
13 October 2014, 10:58 PM ET
The Wide Field Imager (WFI) on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile took this space wallpaper of the open Wild Duck Cluster, Messier 11, or NGC 6705.
13 October 2014, 05:46 PM ET
The first meeting of 'The Astronaut Wives Club' — the made-for-TV-version, that is — has convened in New Orleans. Filming has begun on the 10-episode ABC series, which tells the real story of the women who stood beside the United States' first spacemen.
13 October 2014, 05:20 PM ET
Rosetta team members have named the 82-foot-tall boulder on Comet 67P/Churyumov-Gerasimenko "Cheops," after the largest pyramid in Egypt's famous Giza complex.
13 October 2014, 04:54 PM ET
A recently discovered planet-like star may offer insight into which of the thousands of planets so far discovered in the universe could support life.
13 October 2014, 02:04 PM ET
NASA needs your help to name a new robot, and you could win some money doing it.
13 October 2014, 12:58 PM ET
Frigid lakes bombarded by UV radiation and boiling, acidic springs are some of the otherworldly Earth environments where scientists plan to hunt for clues to life on Mars.
13 October 2014, 07:00 AM ET
Comet Siding Spring, also known as C/2013 A1, will miss the Red Planet by just 87,000 miles (140,000 kilometers) at 2:27 p.m. EDT (1827 GMT) Sunday. For comparison, the moon orbits Earth at an average distance of 239,000 miles (384,600 km).
13 October 2014, 12:38 AM ET
NASA's Hubble Space Telescope has spotted a few objects that the New Horizons probe might be able to explore after it zooms past the Pluto system during a highly anticipated flyby on July 14, 2015.
12 October 2014, 10:53 PM ET
Launched by the Soviet Union in 1957, Sputnik 1 became the world’s first artificial satellite. This legacy continues today with our exploration of the solar system.
12 October 2014, 11:03 AM ET
From spacewalks and sun tentacles to a wild total lunar eclipse, it's been an amazing week for space photography. Check out our favorite space images
12 October 2014, 10:44 AM ET
Monday marks Columbus Day for people in the United States, but did you know there was a lunar twist to the famous explorer's journey?
12 October 2014, 08:44 AM ET
The U.S. Air Force's mysterious X-37B space plane will return to Earth this week, possibly Tuesday (Oct. 14), after 22 months in orbit on a secret mission.
10 October 2014, 07:16 PM ET
The discovery of extraterrestrial beings — be they slimy microbes or little green men — would dramatically change the way we humans view our place in the universe. But would it shatter religion? Well, that depends on what you believe.
10 October 2014, 05:56 PM ET
A NASA astronaut living and working on the International Space Station captured an incredible image of Typhoon Vongfong brewing in the Western Pacific.
10 October 2014, 04:43 PM ET
Nichelle Nichols promotes the next-generation NASA capsule and its possible missions.
10 October 2014, 04:03 PM ET
A new role-playing game set for release next year aims to bring fans of the series 'Firefly' back into the space western universe years after the show went off the air.
10 October 2014, 01:03 PM ET
NASA announced Oct. 9 that it has lifted an order that halted work on commercial crew contracts awarded last month to Boeing and SpaceX, saying that delaying work during an ongoing contract protest could jeopardize the operation of the ISS.