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16 July 2014, 01:38 PM ET
Researchers have studied imagery from ESA/NASA Solar and Heliospheric Observatory (SOHO) spacecraft and concluded that the comet stopped producing gas and dust shortly before it past the Sun. In other words, ISON was DOA.
16 July 2014, 01:30 PM ET
Forty-five years ago, a simple pen played a critical, if unexpected role in the safe return to Earth of the first astronauts to land on the moon. Now there are new pens to mark the 45th anniversary of the Apollo 11 mission.
16 July 2014, 01:00 PM ET
NASA has issued an open call for designs of scientific instruments to send on a future mission to explore Jupiter's moon Europa.
16 July 2014, 12:13 PM ET
For centuries before Apollo 11 landed on the moon, the idea of going there stirred people's imaginations. See the 350-year history of moon exploration in this Space.com infographic.
16 July 2014, 11:30 AM ET
A commercial Cygnus spacecraft built by Orbital Sciences Corporation arrived at the International Space Station on Wednesday, July 16, to deliver 1.5 tons of supplies for astronauts aboard.
16 July 2014, 11:00 AM ET
Seasonal changes in the gullies of Mars reveals that dry ice rather than flowing water is responsible for their creation.
16 July 2014, 11:00 AM ET
A private group has a backup plan for a vintage NASA spacecraft after reconsidering initial suspicions that it was out of gas. See how the ISEE-3 Reboot Project is tapping the minds of the crowdsourcing 'Borg' to find alternative.
16 July 2014, 10:58 AM ET
ISS astronauts Steve Swanson and Reid Wiseman praise the Apollo program for leading the way to today's and future space programs.
16 July 2014, 06:00 AM ET
July 20, 2014 will mark the 45th anniversary of the first moonwalk. NASA has planned a slew of events to reflect on the historic landing and look ahead to the future of space exploration.
15 July 2014, 09:19 PM ET
This space wallpaper shows a richly detailed new view from the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile shows the star formation region Gum 15.
15 July 2014, 07:34 PM ET
A commercial delivery ship packed with astronaut food and supplies is expected to arrive at the International Space Station tomorrow morning (July 16). You can watch the docking live on Space.com, courtesy of NASA TV.
15 July 2014, 07:09 PM ET
Talk about a speed bump. NASA's Mars rover Curiosity has discovered its first meteorite on the Red Planet, and it's no puny space rock. See the Martian meteorite photos here.
15 July 2014, 06:16 PM ET
On June 18, Arizona-based World View launched a scaled-down version of its balloon system to an altitude of nearly 23 miles. The unmanned flight featured spectacular views of Earth from the stratosphere, as the new World View video reveals.
15 July 2014, 04:12 PM ET
The Defense Advanced Research Projects Agency (DARPA) has awarded initial design contracts for its Experimental Spaceplane project, known as XS-1, to three different companies: Boeing, Masten Space Systems and Northrop Grumman.
15 July 2014, 03:30 PM ET
For a German astronaut living in space, his home country's epic World Cup victory this week was quite literally out-of-this-world.
15 July 2014, 03:16 PM ET
World View Enterprises is developing capsules transported by high-altitude balloons and parafoil to 100,000 feet. A scaled version of the capsule broke the record for highest parafoil flight at 120,000 feet (and the view was spectacular).
15 July 2014, 02:43 PM ET
The Experimental Spaceplane (XS-1) is a re-usable unmanned vehicle with the ability to deploy small satellites using expendable upper stages.
15 July 2014, 12:27 PM ET
A Mercury spacecraft lands in the ocean after launched from Little Joe in a High-Q-Abort test.
15 July 2014, 09:30 AM ET
SpaceX managed to fly part of its Falcon 9 rocket back to Earth today (July 14) in a reusability test that did not go entirely as planned. The rocket's first stage performed its re-entry burn and other tasks well but ended up hitting the water hard.
15 July 2014, 08:42 AM ET
NASA's Charles Bolden recalls where he was when the first men walked on the Moon in July of 1969. -- Video: Buzz Remembers Moments Before Moon - http://goo.gl/95uozd
15 July 2014, 08:00 AM ET
NASA's New Horizons mission will be within 6,214 miles (10,000 km) from the surface of the dwarf planet on July 14, 2015. Similar cameras on a probe that close to Earth would be able to resolve individual building and their shapes.
15 July 2014, 07:00 AM ET
While NASA's James Webb Space Telescope will be capable of finding signs of life on nearby exoplanets after its 2018 launch, a bona fide hunt for aliens beyond Earth's neighborhood will require even bigger instruments, experts say.
14 July 2014, 10:30 PM ET
The Mars map, which was released Monday (July 14), was created using observations from four orbiting spacecraft over more than 16 years. It should significantly advance scientists' understanding of the Red Planet, researchers said.
14 July 2014, 08:00 PM ET
Of nail biting descent calls and cockpit politics: An excerpt from Space.com's Google+ Hangout with Dr. Aldrin on 14 July 2014. - See it here: http://goo.gl/xJktMk
14 July 2014, 04:38 PM ET
The U.S. Geological Survey compiled data from four orbiting spacecraft watching over more than 16 years to reveal the materials, events, and processes that made the present day face of Mars.
14 July 2014, 04:05 PM ET
The Federal Aviation Administration's (FAA) office of Commercial Space Transportation has published a “Record of Decision” giving approval for a SpaceX Texas Launch Site in Cameron County, Texas.
14 July 2014, 03:43 PM ET
When the spectacular supermoon emerged on Saturday (July 12), so did shutterbugs around the world. Space.com readers from around the world sent in amazing photos of the amazing lunar display.
14 July 2014, 01:37 PM ET
After a successful mission, Cooper is assisted from his mercury capsule.
14 July 2014, 11:48 AM ET
The private spaceflight company's Falcon 9 rocket lifted off the pad at Florida's Cape Canaveral Air Force Station at 11:15 a.m. EDT (1515 GMT) on Monday (July 14), carrying six spacecraft for the satellite-communications firm ORBCOMM.
14 July 2014, 11:34 AM ET
SpaceX's Falcon 9 rocket delivered 6 satellites in ORBCOMM's OG2 constellation to low-Earth orbit on July 14, 2014.
14 July 2014, 11:28 AM ET
The private space company launched the satellite on July 14th, 2014. SpaceX will also attempt to bring the Falcon 9's first stage back to Earth with an ocean splashdown. FULL STORY: http://goo.gl/v8e5MS
14 July 2014, 07:10 AM ET
Astronaut Janice Voss never flew to the International Space Station, but her name is making the trip on a commercial ship christened in her memory. Orbital Sciences launched the SS Janice Voss from a pad at NASA's Wallops Flight Facility in Virginia.