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.
13 November 2014, 11:10 AM ET
A soft landing on the surface of comet 67P/C-G was successfully completed on Nov. 12th, 2014. The Philae lander and its mothership Rosetta probe both snapped imagery of the descent.
13 November 2014, 09:00 AM ET
The origins of organic matter found by Mars lander missions have long been debated, but a new study suggests a way to find out whether these chemicals of life came from the Red Planet or elsewhere.
13 November 2014, 07:00 AM ET
Europe's Philae lander is already gathering a wealth of data about Comet 67P/Churyumov-Gerasimenko after touching down on the icy object Wednesday morning (Nov. 12).
12 November 2014, 10:38 PM ET
The Big Dipper is an asterism in the constellation Ursa Major. The familiar group of stars serves as a pointer to other locations in the sky.
12 November 2014, 08:20 PM ET
Lick Observatory, in operation since 1888, is involved in the search for planets outside the solar system.
12 November 2014, 04:27 PM ET
Europe's Philae lander made history Wednesday, touching down on Comet 67P/Churyumov-Gerasimenko. But the probe's anchoring harpoons didn't fire as planned, and Philae may have bounced off the surface before settling back again.
12 November 2014, 04:20 PM ET
During a nail-biting drop onto the surface of a comet, the European Space Agency's Philae spacecraft snapped a stunning photo of its icy target. See the close up view of Comet 67P/Churyumov–Gerasimenko.
12 November 2014, 04:08 PM ET
Scientists and space fans aren't the only ones excited by the unprecedented comet landing performed by the European Space Agency today (Nov. 12). The folks behind Google's whimsical doodles are joining the celebration, too.
12 November 2014, 02:44 PM ET
Investigators have talked to the pilot who survived the tragic crash of Virgin Galactic's SpaceShipTwo last month, and say that he didn't know that his copilot unlocked the space plane's re-entry system early.
12 November 2014, 01:25 PM ET
NASA's first space-bound Orion capsule has arrived at the launch pad, where it will lift off on an uncrewed test flight in support of the space agency's plans for future astronaut missions beyond Earth orbit.
12 November 2014, 12:32 PM ET
The mysterious dark matter that makes up most of the matter in the universe may behave more like wavy fluids than solid particles, helping to explain the shapes of galaxies, a new study suggests.