Curiosity, the mini-Cooper-sized rover, is playing the role of stunt double for NASA astronauts, as it monitors radiation levels on its journey to Mars.
Engineers find the cause of a computer reset on NASA's Mars Science Laboratory and determine how to correct it.
One of the instruments on a 2016 mission to orbit Mars will provide daily profiles of the changing structure of the planet's atmosphere.
New color images from NASA's Mars Reconnaissance Orbiter show the agency's 2008 Phoenix Mars Lander and the lander that carried its rover Spirit to Mars in 2004.
At least one object in photos NASA's Curiosity rover will transmit from Mars later this year will look familiar to all Americans: a Lincoln penny sent as a camera reference.
This week's solar storm is giving a NASA Mars-bound spacecraft a chance to gauge how such events would affect radiation exposure of future astronauts flying to Mars.
Martian dunes and sand ripples of mixed shapes and sizes form a striking pattern in a recent image from the high-resolution camera on NASA's Mars Reconnaissance Orbiter.
On the eighth anniversary of starting to explore Mars, NASA's rover Opportunity remains busy with new investigations.
NASA's Mars Science Laboratory spacecraft successfully refined its flight path Wednesday with the biggest maneuver planned for the mission's journey between Earth and Mars.
NASA's Mars Science Laboratory spacecraft has begun firing thruster engines for the first and largest flight-path adjustment of the trip from Earth to Mars.
Researchers plan to keep NASA's Opportunity rover busy through Martian winter at a sun-facing site, "Greeley Haven," where a study of the planet's core has begun.
An American-Italian radar instrument orbiting Mars has mapped the three-dimensional structure of layers beneath the surface in the planet's north polar region.
NASA's car-sized Curiosity rover has begun monitoring space radiation during its 8-month trip from Earth to Mars.
Autonomous Exploration for Gathering Increased Science (AEGIS), novel autonomy software that has been operating on the Mars Exploration Rover Opportunity since December 2009, is NASA's 2011 Software of the Year recipient.
NASA's Mars Exploration Rover Opportunity has found bright veins of a mineral, apparently gypsum, deposited by water.
It's now easier than ever to explore Mars in the great detail offered by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
Excellent launch precision for NASA's Mars Science Laboratory mission has forestalled the need for an early trajectory correction maneuver, now not required for a month or more.
Engineers have received data from NASA's Mars Science Laboratory showing that all systems are operating normally. The approximately eight-month journey to Mars is underway.
NASA's Dawn, Mars Science Laboratory and MESSENGER missions have been honored by Popular Science magazine with "Best of What's New" Award in aviation and space.
NASA began a historic voyage to Mars with the Nov. 26 launch of the Mars Science Laboratory, which carries a car-sized rover named Curiosity.