05 August 2014, 03:10 PM ET
Four astronauts took to the sea to test technologies that could be used in space. The tests came amid spectacular simulated "spacewalks" during the NASA Extreme Environment Mission Operations mission.
05 August 2014, 04:55 AM ET
Space Exploration Technologies launched AsiaSat 8 on a Falcon 9 rocket (9 Merlin 1D engines = 1.3Mlbs. thrust) from Launch Complex 40 at Cape Canaveral, Florida at 4:00am EDT on 5 August 2014. No test of recoverable-reusable booster was planned.
02 August 2014, 03:02 PM ET
From weird orbits of alien planets to a gecko-filled space capsule, don't miss these amazing space images of the week for Aug. 2, 2014.
01 August 2014, 03:59 PM ET
Researchers have found that a "quantum vacuum plasma thruster" system, which requires no propellant, does indeed generate a small amount of thrust. If the technology pans out, it could greatly reduce the cost of spaceflight.
01 August 2014, 07:33 AM ET
NASA's next Mars rover could help humans get a foothold on the Red Planet.
01 August 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in July 2014.
31 July 2014, 03:24 PM ET
NASA's Mars 2020 mission will send a car-size rover to the Red Planet to collect samples. See how the Mars 2020 rover will work in this Space.com infographic.
31 July 2014, 02:41 PM ET
See photos and images of NASA's next Mars rover, a 1-ton robot launching toward the Red Planet in 2020.
31 July 2014, 01:55 PM ET
NASA's next big Mars rover launching in 2020 will be packed to the brim with high-tech instruments, including twin lasers, a water-hunting radar and a new drill to collect samples of Mars. See the seven science instruments on NASA's Mars rover 2020.
30 July 2014, 07:29 PM ET
Space agency officials will reveal the science gear they've chosen for the rover, which will launch toward the Red Planet in 2020, on Thursday at 12 p.m. EDT. You can watch the announcement live here at Space.com, courtesy of NASA TV.
30 July 2014, 07:18 AM ET
While praising NASA's efforts and focus on in-space manufacturing, the U.S. National Research Council report stressed that the agency should organize its various centers to identify priority projects for use on the station.
29 July 2014, 05:00 PM ET
NASA wants to create a robotic gas station in space. While that might call to mind visions of interstellar starships, the unmanned depot won't actually be used to refuel rockets leading to the outer solar system or other worlds; instead, it will be design
29 July 2014, 04:35 PM ET
A company plans to place two new cameras on the outside of the International Space Station in a bid to provide more live views of Earth from space.
29 July 2014, 02:00 PM ET
A new space plane prototype's launch in November could pave the way toward the creation of a reusable cargo vehicle that would survive the blistering re-entry into Earth's atmosphere, according to the European Space Agency.
29 July 2014, 09:52 AM ET
The European Space Agency's Gaia mission will produce a 3D map of the Milky Way Galaxy. It is carrying a billion-pixel camera that will map each star it can resolve more than 70 times. There may as many as 400 Billion stars in our galaxy.
28 July 2014, 08:00 PM ET
The three spacecraft — two of which are fully operational and one of which is an experimental satellite — blasted off today (July 28) from Florida's Cape Canaveral Air Force Station, riding atop a United Launch Alliance Delta 4 rocket.
28 July 2014, 05:48 PM ET
The rover landed on the Red Planet in 2004 and has since driven a record 25.01 miles (40.02 km). The record was previously held by the Russian Lunokhod 2 which roved the lunar surface for 24.2 miles (39 km) in 1973. Full Story: http://goo.gl/C59h6r
28 July 2014, 07:01 AM ET
The founding population of an interstellar colony should consist of 20,000 to 40,000 people, one expert says. Such a large group would possess a great deal of genetic and demographic diversity, giving the settlement the best chance of survival.
25 July 2014, 07:25 AM ET
As the world celebrates the 45th anniversary of Apollo 11's giant leap to the moon, some people are eyeing the celestial body's bounty of resources. But it's unclear at the moment who is allowed to extract and profit from the moon's resources.
24 July 2014, 10:20 AM ET
DigitalGlobe released satellite images of the Malaysian Airlines MH17 plane that was shot down over eastern Ukraine on July 17.
24 July 2014, 08:00 AM ET
"One small step for man, one giant leap for mankind." That sentence, uttered by NASA astronaut Neil Armstrong from the surface of the moon 45 years ago, signaled the dawn of a new age.
24 July 2014, 07:22 AM ET
While the Apollo 11 landing was on the cutting-edge of technology in 1969, today it's a demonstration of how much could be accomplished with so little.
23 July 2014, 01:08 PM ET
See photos from the European Space Agency's Automated Transfer Vehicle 5 (ATV-5) mission to the International Space Station in this Space.com gallery. ATV-5 is Europe's fifth and final planned ATV mission.
23 July 2014, 12:03 PM ET
NASA's first Landsat mission launched in July 1972. Seven more satellites have been launched since. Two of these, Landsat 7 & 8, are still active. The program acquired science imagery of natural disasters, urban change, water, ice, and farming.
21 July 2014, 09:00 AM ET
A dropship quadcopter designed by the European Space Agency could be landing rovers on Mars in the future.
20 July 2014, 09:01 AM ET
Space.com was founded on July 20, 1999 on the 30th anniversary of NASA's Apollo 11 moon landing. Here, managing editor Tariq Malik recounts the last 15 years of Space.com, and the wonder of it all.
20 July 2014, 07:01 AM ET
On July 20, 1969, Neil Armstrong clambered down the ladder of the Apollo 11 lunar lander and pressed his boot into the moon's gray dirt — a simple step that stands as perhaps the most memorable moment in all of human history.
19 July 2014, 12:31 PM ET
From a cosmic rubber ducky to an experimental space plane, don't miss these amazing space images of the week for July 19, 2014.
18 July 2014, 02:38 PM ET
When a missile struck Malaysian Airlines flight MH17, it's likely that heat from the explosion was detected from space by a sophisticated network of military satellites.
17 July 2014, 07:00 AM ET
Experts told a Senate hearing Wednesday that key American national-security space missions could be delayed by four to six years if Russia decides to cut off its supply of RD-180 rocket engines.
16 July 2014, 05:00 PM ET
The Mars Science Laboratory's ChemCam instrument fires its laser at rocks to analyze its composition and clear away dust. A recent firing produced sparks when hitting a rock.
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.