18 March 2014, 03:44 PM ET
This color picture of the Martian horizon was taken by Viking 1 on July 24, 1976.
11 March 2014, 04:01 PM ET
NASA's Mars Reconnaissance Orbiter switched over to safe mode after unexpectedly swapping from one main computer to another. The glitch has suspended science operations, but mission officials are confident the probe can return to service soon.
10 March 2014, 08:00 AM ET
Researchers are developing flat, blanket-size landers that could be delivered en masse to worlds such as Mars or Jupiter's moon Europa. The approach could enable NASA to mount missions to places previously deemed too risky to explore, researchers say.
07 March 2014, 03:40 PM ET
A new study indicates that the entry, descent and landing of SpaceX's unmanned Dragon capsule at Mars is viable. Moreover, the capsule's descent technique would help set the stage for future human missions to the Red Planet.
07 March 2014, 02:34 PM ET
A look at the "Red Dragon" mission concept, which would use SpaceX's Dragon capsule and Falcon Heavy rocket to bring Red Planet samples — perhaps gathered by NASA's 2020 Mars rover — to Earth.
07 March 2014, 06:47 AM ET
This series of Hubble Space Telescope photos captures a rare event in action, the breakup of asteroid P/2013 R3 as it happened in 2013 and 2014. See the amazing Hubble photos here.
07 March 2014, 06:30 AM ET
Astronomers have seen comets break apart as they near the sun, but they'd never witnessed anything similar in an asteroid in the main belt — until now. Hubble images show that the asteroid, known as P/2013 R3, has fragmented into 10 pieces.
06 March 2014, 02:02 PM ET
A huge meteorite impact on Mars was so powerful that it blasted a bunch of Red Planet rocks in Earth's direction five million years ago. The cosmic crash is the source of all "shergottite" Martian meteorites found on Earth, researchers say.
05 March 2014, 01:04 PM ET
NASA's Mars MAVEN mission (arriving 21 September 2014) will detect and measure how the solar wind interacts with the Red Planet’s atmosphere, giving clues to where its water went and why.
05 March 2014, 11:00 AM ET
NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions. See Space.com complete coverage of NASA's 2015 budget request here:
04 March 2014, 06:54 PM ET
If scientists do find life on Mars, it may be possible to beam Martian DNA back to Earth, according to a new idea growing in popularity. If Martian bugs can be found, the idea of "faxing" life from Mars is an enticing prospect.
04 March 2014, 06:07 PM ET
NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions, while supporting ambitious new science missions. See reactions to the new NASA budget.
04 March 2014, 03:05 PM ET
NASA unveiled its 2015 budget request today (March 4), a request that seeks $17.5 billion for the agency. See NASA chief Charles Bolden's view of the agency's 2015 budget plan.
04 March 2014, 01:08 PM ET
NASA's 2015 budget would remain essentially flat at $17.5 billion under a White House spending proposal unveiled today (March 4). It maintains the agency's biggest space programs, lays groundwork for major new astrophysics and planetary science.
04 March 2014, 12:50 PM ET
See images of NASA’s space exploration goals for 2015.
04 March 2014, 02:12 AM ET
To succeed in distant space, first engineers must tackle artificial gravity.
03 March 2014, 10:18 AM ET
The Netherlands-based nonprofit Mars One, which aims to land four astronauts on the Red Planet in 2025, has signed a deal to use a new "people's map of Mars" being developed by the space-funding company Uwingu.
01 March 2014, 10:06 AM ET
A flyby of Mars in 2021 could be a good precursor to landing astronauts on Mars sometime in the not-too-distant future, but much work needs to be accomplished before that goal can be achieved, experts told Congress Thursday (Feb. 27).
28 February 2014, 11:57 AM ET
The nonprofit Mars Society has selected 62 semifinalists from a total of more than 200 applicants for its Mars Arctic 365 (MA365) mission, which aims to help prepare humanity for a real manned Red Planet mission down the road.
28 February 2014, 11:43 AM ET
See images and photos of an audacious private manned Mars mission in 2021 by the nonprofit Inspiration Mars Foundation.
28 February 2014, 07:26 AM ET
NASA's Mars rover Curiosity has taken some dazzling new photos of the Red Planet landscape, showing in sharp detail where it's been and the long road ahead, which leads to the base of a 3.4-mile-high mountain.
28 February 2014, 01:00 AM ET
The discovery of tiny balls and tunnels inside a Martian meteorite has rekindled the debate over whether the Red Planet was teeming with primitive life millions of years ago.
27 February 2014, 02:51 PM ET
This panoramic image is the first photograph taken of Mars by Voyager 1's Camera 1 in 1976.
27 February 2014, 01:48 PM ET
Space tourist Dennis Tito's daring proposal to send a married couple on a 501-day space flight around the planet Mars and back.
26 February 2014, 12:01 PM ET
Starting today (Feb. 26), anybody with an Internet connection and a few dollars to spare can give a moniker to one of the Red Planet's 500,000 or so unnamed craters, as part of a mapping project run by the space-funding company Uwingu.
25 February 2014, 07:58 PM ET
A team of scientists says that microscopic tunnels and carbon-rich spherules that stud the interior of a Martian meteorite known as Yamato 000593 may have been formed by Red Planet organisms long ago, NBC News reported today (Feb. 25).
25 February 2014, 10:57 AM ET
Mars Reconnaissance Orbiter (MRO) spacecraft has sent over 200 terabits of data back to Earth. See what it photographed when it passed the 200 terabit mark.
22 February 2014, 02:56 AM ET
Will telemedicine work on Mars?
21 February 2014, 07:20 AM ET
Early on Saturday morning (Feb. 22), if skies are clear, you’ll have an opportunity to catch sight of the last quarter moon pairing off the ringed wonder of the solar system, Saturn.
21 February 2014, 07:00 AM ET
The maneuver was designed to test out a strategy for reducing wear on the robot's six metal wheels, which have accumulated dings and holes at an increasing rate over the last few months, NASA officials said.
20 February 2014, 01:48 PM ET
Mars' upper atmosphere is swarming with atoms, ions and molecules actively exiting the planet's sphere of influence. That's why NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft is headed there: to discover why.
19 February 2014, 03:45 PM ET
NASA's Mars rover Curiosity rolled past 5 kilometers on the Red Planet last week, and many people who work at the space agency's Jet Propulsion Laboratory went on a 5K run to celebrate.
19 February 2014, 11:44 AM ET
In this space wallpaper of a dune field on Mars in a large crater near Mawrth Vallis, some of the dunes appear to be in a V-shaped formation. For dune fields, the spacing of individual dunes is a function of sand supply, wind speed, and topography.
18 February 2014, 04:17 PM ET
The Mars Science Laboratory recently crossed a sand dune called Dingo Gap, leaving behind a terrain full of sharp, well cemented rocks on its way past 5,000 meters traveled on the martian surface.
18 February 2014, 04:02 PM ET
NASA's Mars rover Curiosity has given scientists their best-ever look at the radiation environment astronauts would experience during a Red Planet mission.
18 February 2014, 09:55 AM ET
The FIDO Rover undergoes field test to prepare for conditions on Mars.