Desolate Landscape

Seasons change even on Mars and NASA's fleet of explorers are helping scientists learn more about the effects on the Red Planet.

This plot shows the first-ever look at the deuterium to hydrogen ratio measured from the surface of Mars, as detected by the Sample Analysis at Mars instrument, or SAM, on NASA's Curiosity rover.

As of June 2012, the target landing area for Curiosity, the rover of NASA's Mars Science Laboratory mission, is the ellipse marked on this image. The ellipse is about 12 miles long and 4 miles wide...

This is the first image taken by NASA's Curiosity rover, which landed on Mars the evening of Aug. 5 PDT (morning of Aug. 6 EDT).

Large-scale crossbedding in the sandstone of this ridge on a lower slope of Mars' Mount Sharp is typical of windblown sand dunes that have petrified. NASA's Curiosity Mars rover used its Mastcam to...

A June 2012 revision of the landing target area for Curiosity, the big rover of NASA's Mars Science Laboratory mission, reduces the area's size.

This graphic shows the flux of radiation detected by NASA's Mars Science Laboratory on the trip from Earth to Mars from December 2011 to July 2012.

This image of NASA's Curiosity rover shows the location of the two components of the Dynamic Albedo of Neutrons instrument.

The team responsible for the Sample Analysis at Mars (SAM) instrument suite on NASA's Curiosity rover has made the first definitive detection of organic molecules at Mars.

Bobak Ferdowsi, Curiosity flight director, shares a special message with students on building robots.

"Vera Rubin Ridge," a favored destination for NASA's Curiosity Mars rover even before the rover landed in 2012, rises near the rover nearly five years later in this panorama from Curiosity's Mast C...

Looking Back at the Crater Rim

This rock encountered by NASA's Curiosity Mars rover is an iron meteorite called "Lebanon," similar in shape and luster to iron meteorites found on Mars by the previous generation of rovers, Spirit...

NASA's Mars rover Curiosity used a new technique, with added autonomy for the rover, in placement of the tool-bearing turret on its robotic arm during the 399th Martian day, or sol, of the mission.

This kickoff of a new Mars video series covers Opportunity's 14th anniversary on the Red Planet, Curiosity's spectacular panorama and ice deposits spotted by an orbiter.

Mastcam 34: Shorter Focal-Length Eye of Mast Camera Pair for Mars Rover

This artist's animation shows how orbiters over Mars will monitor the landing of NASA's Curiosity rover. (No audio)

NASA's Mars rover Curiosity drove 6.2 feet (1.9 meters) during the 100th Martian day, or sol, of the mission (Nov. 16, 2012).

There are no gas stations or power outlets in space. That's why NASA's Curiosity rover on Mars--and some other NASA spacecraft that explore the solar system--use something called "radioisotope powe...

Test at NASA Dryden of Radar System for Next Mars Landing

Researchers used the Mastcam on NASA's Curiosity Mars rover to gain this detailed view of layers in "Vera Rubin Ridge" from just below the ridge. The scene combines 70 images taken with the Mastcam...

This view taken from orbit around Mars shows the sand dune that will be the first to be visited by NASA's Curiosity Mars Rover along its route to higher layers of Mount Sharp.

Sheri Klug Boonstra, director of the Mars Education Program at Arizona State University, leads a group of teachers through an analytical exercise.

This composite image, with magnified insets, depicts the first laser test by the Chemistry and Camera, or ChemCam,

This stereoscopic anaglyph image was created from a left and right stereo pair of images of the Mars Science Laboratory mission's rover, Curiosity. The image was taken May 26, 2011, in Spacecraf...