Countdown Nears: Final Tests

Crater Floor Deposits in Promethei Terra

NASA's Curiosity Mars rover and its tracks are visible in this view combining information from three observations by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Re...

This map traces where NASA's Mars rover Curiosity drove between landing at a site subsequently named "Bradbury Landing," and the position reached during the mission's 123rd Martian day, or sol, (De...

This image shows the floor of Ius Chasma

This unnamed impact crater is about 8 kilometers in diameter and contains numerous gullies.

This map shows the route driven by NASA's Curiosity Mars rover from the location where it landed in August 2012 to its location in December 2016, which is in the upper half of a geological unit cal...

This March 20, 2014, image from the MARCI camera on NASA's Mars Reconnaissance Orbiter has a dark spot (at center of inscribed rectangle) noticed while the image was being examined for a weather re...

The Electris region of Mars contains some interesting features, such as the raised-relief blocks of material visible in this image.

Mawrth Vallis contains clay minerals that formed by chemical alteration of rocks by water. The central part of the image is dominated by light-toned materials with curving fractures of many differe...

The annotated area of Mars in this illustration holds near-surface water ice that would be easily accessible for astronauts to dig up. The water ice was identified as part of a map using data from ...

Side-by-side movies shows how the 2018 global dust storm enveloped the Red Planet, courtesy of the Mars Color Imager (MARCI) camera onboard NASA's Mars Reconnaissance Orbiter (MRO). This global dus...

This "ring trough" or eroded pit crater, is located in the rugged southern highland terrain known as Noachis Terra. The HiRISE image shows the layered, boulder-rich wall rock facing to the northeas...

Image of Hesperia Planum from the HiRISE camera on Mars Reconnaissance Orbiter.

This image from NASA's Mars Reconnaissance Orbiter shows a hill with a central crater. Such features have been interpreted as both mud volcanoes (really a sedimentary structure) and as actual volca...

This color view of the parachute and back shell that helped deliver NASA's Curiosity rover to the surface of the Red Planet was taken by the High-Resolution Imaging Science Experiment (HiRISE) came...

MRO took this image of layered, sedimentary rocks on the floor of an impact crater north of Eberswalde Crater. Billions of years ago there may have been a lake in this crater.

As on the Earth, many processes can move material down a Martian slope. This graphic compares seven different types of features observed on Mars that appear to result from material flowing or slidi...

This sequence of three HiRISE images from NASA's Mars Reconnaissance Orbiter shows the growth of a branching network of troughs carved by thawing carbon dioxide over the span of three Martian years...

This image acquired on January 25, 2019 by NASAs Mars Reconnaissance Orbiter, shows Ius Chasma, a major section of the western portion of the giant Valles Marineris trough.

This pair of images covers one of many sites on Mars where researchers use the HiRISE camera on NASA's Mars Reconnaissance Orbiter to study changes in gullies on slopes. Changes such as the ones v...

Martian gullies as seen from HiRISE on NASA's Mars Reconnaissance Orbiter resemble gullies on Earth that are carved by liquid water. However, when they are observed with the addition of mineralogic...

HiRISE captured this image of an eroded mesa made famous by its similarity to a human face in a Viking Orbiter image with much lower spatial resolution and a different lighting geometry.

NASA's Mars Reconnaissance Orbiter, nearing the 10th anniversary of its arrival at Mars, used its High Resolution Imaging Science Experiment (HiRISE) camera to obtain this view of an area with unus...

This map shows the thickness of the north polar layered deposits on Mars as measured by the Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter.

The Mars Climate Sounder instrument on NASA's Mars Reconnaissance Orbiter maps the vertical distribution of temperatures, dust, water vapor and ice clouds in the Martian atmosphere as the orbiter f...