Storm Chaser on Mars

The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter obtained this spectrum for comet C/2013 A1 Siding Spring during the comet's close approach...

This view of Martian surface features shaped by effects of winds was captured by the HiRISE camera on NASA's Mars Reconnaissance Orbiter on Jan. 4, 2015. The spacecraft has been orbiting Mars sinc...

This view of layered rocks on the floor of McLaughlin Crater shows sedimentary rocks that contain spectroscopic evidence for minerals formed through interaction with water.

This image acquired on January 23, 2019 by NASAs Mars Reconnaissance Orbiter, shows the western portion of a well-preserved (recent) impact crater in Ladon Basin.

This image (top) taken by the Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter reveals the layers of ice, sand and dust that make up the north polar ice cap on Mars

This is an image of a central pit of an impact crater in the Martian ancient highlands.

The arm and the remote sensing mast of the Mars rover Curiosity each carry science instruments and other tools for NASA's Mars Science Laboratory mission.

This is a small volcano superimposed on the flanks of a larger one of the Cerberus Tholi.

This movie clip shows a global map of Mars with atmospheric changes from Feb. 18, 2017, through March 6, 2017, a period when two regional-scale dust storms appeared. It combines hundreds of images ...

This mosaic, taken with the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter, shows the planned route (in yellow) of NASA's Curiosity rover from "Pah...

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...

NASA's Mars Science Laboratory rover Curiosity appears as a bluish dot near the lower right corner of this enhanced-color view from the High Resolution Imaging Science Experiment (HiRISE) camera on...

This proposed future Mars landing site in Acidalia Planitia targets densely occurring mounds thought to be mud volcanoes.

Mars Reconnaissance Orbiter Project Manager Jim Graf shakes the hand of Andrew Dantzler, Director of NASA's Solar System Division, after a successful orbit insertion on March 10, 2006. Fuk Li, Dire...

Researchers have found deposits of impact glass preserved in Martian craters, including Alga Crater, shown here.

Artist's concept of Mars Reconnaissance Orbiter

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter acquired this image of the Opportunity rover on the southwest rim of "Santa Maria" crater on New...

Getting a spacecraft to Mars is no walk in the park - as launch engineers are well aware. But when the spacecraft in question is among the largest ever sent to the red planet, there are specific ch...

This graphic shows Martian atmospheric temperature data related to seasonal patterns in occurrence of large regional dust storms.

This image features an exhumed crater in Meridiani Planum, an equatorial region where the rover Opportunity has been exploring the Martian surface since January 2004. An exhumed crater is one that ...

This image from the NASA Mars Reconnaissance Orbiter shows an impact scar on Mars made by pieces of the NASA Mars Science Laboratory spacecraft that the spacecraft shed just before entering the Mar...

This map of the region around NASA's Mars Exploration Rover Opportunity shows the relative locations of several craters and the rover in May 2010.

Northern Hemisphere Gullies on West-Facing Crater Slope, Mars

This map shows the frequency of carbon dioxide frost's presence at sunrise on Mars, as a percentage of days year-round. Carbon dioxide ice more often covers the ground at night in some mid-latitude...

Caught in Action: This image shows avalanches on North Polar Scarps.