Scarecrow Rover Wheel Closeup

This view of a Martian rock target called "Harrison" merges images from two cameras on NASA's Curiosity Mars rover to provide both color and microscopic detail.

NASA's Curiosity rover gets its first taste of Mars and finds plagioclase feldspar, pyroxene, and olivine minerals.

This series of pie charts shows similarities and differences in the mineral composition of mudstone at 10 sites where NASA's Curiosity Mars rover collected rock-powder samples and analyzed them wit...

NASA's Mars rover Curiosity heads on the long journey to the mission's main destination, Mount Sharp.

This pairing illustrates the first time that NASA's Mars rover Curiosity collected a scoop of soil on Mars.

Meet some of the women team members and hear about the exciting and challenging jobs they do in science and engineering while working with Mars rover Curiosity.

The image, at lower left, is annotated to show where the Dynamic Albedo of Neutrons (DAN) instrument on NASA's Mars rover Curiosity took measurement on a rock outcrop (Spot 39) and on loose soil (S...

This patch of Martian bedrock, about 2 feet (70 centimeters) across, is finely layered rock with some pea-size inclusions. It lies near the lowest point of the "Pahrump Hills" outcrop, which forms ...

This artist's concept shows thrusters firing during the entry, descent and landing phase for NASA's Mars Science Laboratory mission to Mars.

Engineering models of the Curiosity Mars rover (foreground) and the Perseverance Mars rover share space in the garage at JPL’s Mars Yard. 

This false-color engineering drawing shows the Collection and Handling for In-Situ Martian Rock Analysis (CHIMRA) device, attached to the turret at the end of the robotic arm on NASA's Curiosity Ma...

This map shows where NASA's Mars rover Curiosity landed in August 2012 at "Bradbury Landing"; the area where the rover worked from November 2012 through May 2013 at and near the "John Klein" target...

This color full-resolution image showing the heat shield of NASA's Curiosity rover was obtained during descent to the surface of Mars on Aug. 5 PDT (Aug. 6 EDT).

This view of Curiosity's deck shows a plaque bearing several signatures of US officials, including that of President Obama and Vice President Biden.

This video, taken by one of the Navigation Cameras, or Navcams, on NASA's Curiosity Mars rover, shows the rover's robotic arm as it rotates to take a selfie. A camera at the end of the arm captured...

No bones about it! Seen by Mars rover Curiosity using its MastCam, this Mars rock may look like a femur thigh bone. Mission science team members think its shape is likely sculpted by erosion, eithe...

On this image of the broken rock called "Tintina," color coding maps the amount of mineral hydration indicated by a ratio of near-infrared reflectance intensities measured by the Mast Camera (Mastc...

NASA has selected Gale crater as the landing site for the Mars Science Laboratory mission.

Rhythmic patterns of sedimentary layering in Danielson Crater on Mars result from periodic changes in climate related to changes in tilt of the planet.

This raw-color view from Curiosity's Mastcam shows the rover's drill just after finishing a drilling operation at "Telegraph Peak" on Feb. 24, 2015. Three days later, a fault-protection action by t...

This map of Mars shows all of the more than 60 landing sites proposed for the Mars Science Laboratory (red dots) and the four final candidate sites (blue dots).

Three Generations of NASA Mars Rovers

Examination of a calcium sulfate vein called "Diyogha" by the ChemCam instrument on NASA's Curiosity Mars rover found boron, sodium and chlorine. An image from the rover's Mastcam, at left, provide...

Astronaut, Leland Melvin escorts Will.i.am into JPL at the beginning of the Curiosity Landing Night event.

This view of a Martian rock called "Rocknest 3" combines four images taken by the right-eye camera of the Mast Camera (Mastcam) instrument, which has a telephoto, 100-millimeter-focal-length lens.