17 November 2014, 05:00 PM ET
Space station commander Barry Wilmore installed the 3D printer inside the orbiting lab's Microgravity Science Glovebox Monday. The machine and its software are in good operating condition, and the first test items will likely be printed sometime Monday.
17 November 2014, 04:30 PM ET
The last group of astronauts to repair the Hubble Space Telescope discusses its astronomical legacy.
17 November 2014, 03:30 PM ET
See photos of the new Hubble Space Telescope exhibit at the Intrepid Sea, Air & Space Museum.
17 November 2014, 03:04 PM ET
The first spacecraft to land on a comet has earned a stamp of approval in the UK. Mail delivered in England, Scotland, Wales, and Northern Ireland have been stamped with a postmark celebrating the historic landing by the Philae probe.
17 November 2014, 02:32 PM ET
Newly released photos by the Rosetta mothership show Philae's descent toward the comet and the probe's position shortly after its first bounce. The images span 30 minutes around Philae's initial touchdown.
17 November 2014, 02:18 PM ET
The Great Red Spot on Jupiter's face is secretly dull in color. But the swirling storm looks crimson thanks to something like a cosmic "sunburn." Gases in Jupiter's upper atmosphere turn reddish when they're hit with sunlight, scientists say.
17 November 2014, 02:05 PM ET
The Made In Space printer was launched aboard the SpaceX CRS-4 mission in Sep. 2014. On Nov. 17th, 2014, the printer was installed into the microgravity science laboratory's glove box. Its first test will occur later in the day.
17 November 2014, 12:56 PM ET
The annual Leonid meteor shower peaks tonight and you can watch it live online.
17 November 2014, 11:20 AM ET
Rosetta is a spacecraft launched by the European Space Agency with a 10-year mission to rendezvous with a comet.
17 November 2014, 09:16 AM ET
Don't get him angry. You wouldn't like it when he's angry! The actor and retired body builder wants you to check out the NASA spacecraft, which he describes as "leaving other spacecraft 'Green with envy.'”
17 November 2014, 07:00 AM ET
Scientists may soon get a look at the universe's skeleton by taking a close look at light left over from the Big Bang, which can be used to reveal the presence of matter like stars, galaxies, and even larger structures in the universe.
16 November 2014, 11:12 AM ET
The Leonid meteor shower of 2014 will peak on Monday and Tuesday (Nov. 17 and 18), but don't expect a dazzling celestial light show. Here's what to expect from the Leonids this year.
16 November 2014, 09:50 AM ET
Alien life might flourish on an exotic kind of carbon dioxide, researchers say. This 'supercritical' carbon dioxide, which has features of both liquids and gases, could be key to extraterrestrial organisms much as water is to biology on Earth.
15 November 2014, 10:40 AM ET
If you were up late Friday night, or rather awake in the wee hours of Saturday, you may have seen two brilliant objects that will immediately catch your eye if the sky is clear.
15 November 2014, 10:34 AM ET
In August 2014, ESA's Rosetta Spacecraft will rendezvous with Comet 67P/Churyumov-Gerasimenko and deploy the Philae lander. See photos from the Rosetta comet probe.
15 November 2014, 10:00 AM ET
Stargazers in the U.S. should look for meteors on Monday and Tuesday morning before dawn.
15 November 2014, 09:20 AM ET
The first spacecraft ever to land on a comet has fallen silent, entering a potentially long, cold sleep after running out of power. The European Space Agency's Philae lander has entered hibernation after 57 hours on Comet 67P/Churyumov–Gerasimenko.
15 November 2014, 12:46 AM ET
Learn about the composition and orbit of comets, as well as the history of their discovery, famous comets and space missions to analyze them.
14 November 2014, 04:31 PM ET
The new biopic "The Theory of Everything" documents the personal life of cosmologist Stephen Hawking.
14 November 2014, 03:27 PM ET
The first Hasselblad camera to be flown into space has sold at auction for $275,000 to a UK collector who says in some respects the artifact was a bargain. The historic camera's new owner spoke with collectSPACE.com in an exclusive interview.
14 November 2014, 12:32 PM ET
Europe's Philae lander is expected to drill into the surface of its comet for the first time today (Nov. 14), in spite of the fact that the probe could be running out of battery life,,European Space Agency officials said today (Nov. 14).
14 November 2014, 11:16 AM ET
Three hours after the Chandra X-Ray Telescope detected one of the largest flares ever observed originating from the Milky Way’s supermassive black hole, the IceCube Neutrino Observatory in Antartica detected a high-energy neutrino.
14 November 2014, 09:41 AM ET
The space telescope has returned many 'wonders' in its 25 years of service to humanity. On April 24, 1990 it launched aboard the space shuttle Discovery. Stay updated on twitter at #Hubble25.
14 November 2014, 07:30 AM ET
When the Philae attempted touchdown on comet 67P, it bounced off with nearly enough force to drift away into space.
14 November 2014, 07:00 AM ET
Europe's Rosetta mission pulled off the first-ever soft landing on a comet Wednesday thanks to a lot of great engineering and hard work — along with a healthy dose of luck, team members said.
14 November 2014, 06:56 AM ET
Researchers have been testing out "starshade" technology, which could help astronomers find and characterize rocky, Earthlike alien worlds by blocking the overpowering light of their parent stars.
14 November 2014, 12:59 AM ET
Jupiter is the largest planet in our solar system, and is known for its many moons, its dangerous radiation belt and its iconic Great Red Spot.
13 November 2014, 08:39 PM ET
This space wallpaper shows extensive dust and small clumps of star formation in part of the Taurus star formation region.
13 November 2014, 08:04 PM ET
Uranus is finally having some summer storms, seven years after the planet reached its closest approach to the sun, leaving scientists wondering why the massive storms are so late.
13 November 2014, 05:29 PM ET
To the casual observer, the moon may be only an occasional highlight in the night sky. But if you track the moon through its monthly phases, you might be surprised by what you see.
13 November 2014, 04:03 PM ET
: Late autumn is an excellent time to observe four of the most variable stars in the sky: Mira, Algol, and Delta Cephei. As their name suggests, variable stars are ones that, for one reason or another, varies in brightness over time.
13 November 2014, 11:41 AM ET
The European Space Agency's Philae lander bounced not once but twice before completing its historic comet landing on Nov. 12, 2014. See the first photos from Comet 67P's surface and a status update on the Rosetta mission.