14 January 2014, 12:01 PM ET
The Kasei Valles outflow channel system extends ~1865 miles (3000 km). ESA's Mars Express photographed the area in 2004. A 67-image mosaic was used to create this animation.
14 January 2014, 10:46 AM ET
During the crew handover at the Mars Desert Research Station (MDRS) Jan. 4, one person spoke of the "noise" of Earth fading away as the crew focuses on its activities. That's something my group, Crew 133, is just starting to learn about.
14 January 2014, 10:15 AM ET
Crew 133 is learning a number of new skills during its two-week stay at the Mars Desert Research Station, which is a Mars Society facility in Utah designed to simulate exploration on the Red Planet.
13 January 2014, 02:27 PM ET
Walk across the fall line, knees bent, back straight. Lean into your back foot. Remember not to go tumbling off the hill while inside the spacesuit.
11 January 2014, 02:17 PM ET
Comet Siding Spring (C/2013 A1) will shoot within 83,000 miles of the surface of the Red Planet (1/3 the distance between Earth and Moon). Mars will orbit into closest approach to the cometary cloud about 100 minutes later.
11 January 2014, 01:50 PM ET
A first-person look at a simulated spacewalk taken by a crewmember of a Utah mock Mars mission that seeks that aims to test out technologies and procedures that could help humanity colonize the Red Planet someday.
11 January 2014, 11:50 AM ET
See photos from a mock Mars mission in the Utah desert as seen by Crew 133 at the Mars Desert Research Station near Hanksville (Jan. 4 to 19, 2014).
09 January 2014, 05:37 PM ET
"Spirit and Opportunity: 10 Years Roving Across Mars" opened Thursday at the National Air and Space Museum in Washington, D.C. The exhibition features photos taken by Spirit and Opportunity, which landed on the Red Planet in January 2004.
09 January 2014, 04:22 PM ET
The 1-ton Curiosity rover and its tracks are visible in a new image, which was taken by the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA's Mars Reconnaissance Orbiter on Dec. 11, 2013 and just released today (Jan. 9).
08 January 2014, 04:42 PM ET
Shelf-stable foods and crops grown onsite form the menu of the crews at the Mars Desert Research Station in rural Utah.
07 January 2014, 04:52 PM ET
NASA's Spirit and Opportunity rovers landed on the Red Planet 10 years ago. Spirit 'lights' went dim in 2010 but Opportunity is still returning science. NASA administrator Charles Bolden talks about the rovers and NASA's future Mars missions.
06 January 2014, 04:32 PM ET
A simulated Red Planet mission has begun at the Mars Desert Research Station in Utah, where six crewmembers are performing research that could lay the foundation for a real trip to Mars someday.
06 January 2014, 02:21 PM ET
SPACE.com contributor Elizabeth Howell is part of a mock Mars mission in the Utah desert this week and wants to know: What questions do you have for a Red Planet simulation?
03 January 2014, 04:02 PM ET
Ten years ago today (Jan. 3), NASA dropped the first of two rovers onto the surface of Mars, kicking off a wildly successful mission that continues to beam home data about the Red Planet and its wetter, warmer past.
03 January 2014, 01:54 PM ET
With budget constraints and political challenges, what role do people play in future missions to Mars and beyond?
02 January 2014, 02:35 PM ET
The Mars Desert Research Station aims to help humanity prepare for the rigors and challenges of life on the Red Planet. It was designed in line with the "Mars Direct" settlement approach, which sees crews living off the land as much as possible.
31 December 2013, 09:27 AM ET
A crescent Venus, Jupiter at opposition, Taurus constellation and its Red-Giant 'eye' and the Quadrantid meteor shower makes for quite a skywatching show. In the market for a telescope? - Click the blue 'SHOP' link above.
31 December 2013, 09:16 AM ET
From a new rover on the moon, to the most powerful digital camera ever built, space will be buzzing with human activities in 2014.
28 December 2013, 02:00 PM ET
From extrasolar planets to extraterrestrial neutrinos, these scientific findings have made sure that 2013 has been an unforgettable year.
24 December 2013, 02:52 PM ET
Early risers will have an opportunity to see the moon move through the sky on Christmas Day and throughout the week.
23 December 2013, 05:28 PM ET
A European spacecraft orbiting the Red Planet is set to make its closest flyby yet of the largest Martian moon, Phobos, on Sunday (Dec. 29).
23 December 2013, 11:57 AM ET
In anticipation of the Mars Express' risky fly-by of the Martian Moon on Dec. 29, 2013 it (coming with 28 miles (45km) of the surface), the European Space Agency has compild imagery from previous fly-bys to create this highly detailed fly-around.
23 December 2013, 07:40 AM ET
The bone-dry desert of present-day Mars may seem like the last place you would look for water, but the Red Planet actually contains a wealth of water locked up in ice.
23 December 2013, 07:17 AM ET
As 2013 draws to a close, it's time to look forward to the stargazing highlights of the coming year. Here are 11 of the most noteworthy sky events that will take place in 2014. SPACE.com will provide more coverage of these events as they draw closer.
20 December 2013, 02:55 PM ET
Engineers are gearing up to perform a check of the Mars rover Curiosity's six wheels, which have accumulated a lot of wear and tear during the robot's 16 months on the Red Planet. Future routes may seek out relatively smooth ground to reduce wheel wear.
19 December 2013, 04:18 PM ET
LEGO will launch its 2014 toy line with a fan-created model of NASA's Mars Curiosity rover. The Danish toy company announced on Wednesday (Dec. 18) that its new "NASA Mars Science Laboratory Curiosity Rover" building brick set will go on sale Jan 1.
19 December 2013, 07:00 AM ET
The Mars One colonization mission plans to bring live video of the surface of Mars to Earth via a privately built communications satellite and lander to launch as part of an unmanned mission in 2018.
17 December 2013, 01:59 PM ET
This space wallpaper is a color-coded topography map of Juventae Chasma revealed by Mars Express. White and red show the highest terrains, while blue and purple show the deepest.
16 December 2013, 07:00 AM ET
If a solar flare is on its way to the Mars Desert Research Station in January, Joseph Jessup wants to make sure Crew 133 is prepared to react if necessary. That's why he's driving from Arizona to the Mars Society facility in Utah with a radio telescope.
10 December 2013, 05:23 PM ET
Mars One, the nonprofit foundation that plans to send astronauts on a one-way trip to Mars, has secured suppliers for its first mission to the Red Planet. The foundation has picked Lockheed Martin to design its unmanned vehicles.
10 December 2013, 05:00 PM ET
As a Canadian, I'm supposed to be used to extremes. I've commuted across the city many times in snowstorms, skated on an outdoor canal in blistering cold and played soccer in the humid soup of 104 degrees Fahrenheit (40 degrees Celsius).
10 December 2013, 01:00 PM ET
Dark streaks that are seasonally observed on Martian slopes near the equator could indicate the presence of salt water on Mars that melts and evaporates during warmer months on the Red Planet, scientists say.
10 December 2013, 11:00 AM ET
Life on Earth or Mars could have been brought to the moons of Jupiter or Saturn on rocks blasted off those planets, researchers say.
10 December 2013, 10:00 AM ET
The private Mars One colony project
09 December 2013, 12:01 PM ET
NASA's Curiosity rover has found evidence of an ancient Martian lake that could have supported life for perhaps millions of years. This lake likely existed 3.7 billion years ago, suggesting that Mars was habitable more recently than thought.
09 December 2013, 12:01 PM ET
A mission consisting of a 180-day cruise to Mars, a 500-day stay on the Red Planet and a 180-day return flight to Earth would expose astronauts to a cumulative radiation dose of about 1.01 sieverts, Curiosity's measurements suggest.