NASA's Mars Reconnaissance Orbiter has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies.
New images show Curiosity, the rover for NASA's Mars Science Laboratory mission, looking similar to how it will appear after it lands on Mars in August 2012.
The main camera instrument for the next rover to Mars will use a pair of cameras with different focal lengths, already installed and tested, rather than twin zoom cameras.
Hopes for reviving NASA's Spirit Mars rover dimmed further with passage last week of the point at which the rover's locale received its maximum sunshine for the Martian year.
For most of this month, the Mars Science Laboratory mission's rover, Curiosity, is inside a sealed chamber where conditions simulate those it will experience on Mars.
Governments of the United States and Spain saluted collaboration in the Mars Science Laboratory mission with an agreement-signing ceremony today, March 17, in Madrid.
NASA's versatile Mars Reconnaissance Orbiter, which began orbiting Mars five years ago on March 10, has radically expanded our knowledge of the Red Planet and is now working overtime.
A new color view from NASA's Mars Reconnaissance Orbiter catches the rover Opportunity at work beside a football-field-size crater which the rover will soon leave behind.
Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be.
NASA's next Mars rover, Curiosity, will take a next generation "hands-on" look at rocks and soils to determine the chemical makeup near its landing zone.
Hearty thoughts are prompted by the image of a crater in the Arabia Terra region of Mars, taken by the Conext Camera on NASA's Mars Reconnaissance Orbiter.
Sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions, according to research using images from a NASA orbiter.
The team operating NASA's Mars rover Opportunity will temporarily suspend commanding for 16 days after the rover's seventh anniversary next week, but the rover will stay busy.
One of the jobs for the biggest science instrument on NASA's next Mars rover will be to check for the carbon-based molecular building blocks of life.
Scientists will discuss recent discoveries about Mars and future Mars exploration at a Jan. 13 event to be streamed live and archived.
The project team that built and operates the Mars rovers Spirit and Opportunity has become the first NASA space mission to use cloud computing for daily mission operations.
Nine months after last hearing from the Mars rover Spirit, NASA is stepping up efforts to regain communications with the rover before spring ends on southern Mars in mid-March.
NASA's Mars Reconnaissance Orbiter has photographed the Mars Exploration Rover Opportunity beside a crater where the rover will spend the seventh anniversary of its landing.
One Mars movie gives a rover's-eye view of a bluish Martian sunset; another shows the silhouette of Phobos passing in front of the sun.
NASA's Mars Exploration Rover Opportunity will spend a few weeks investigating a football-field-size crater informally named "Santa Maria."