Storm Chaser on Mars

Curiosity performs the first investigation of active sand dunes on another planet. Studying the Bagnold Dunes on Mars will help scientists understand the physics of Martian dunes and how they move.

This enhanced image shows the inside of a rimless pit about 180 meters (591 feet) in diameter, northwest of the mountain Ascraeus Mons in the northern hemisphere of Mars.

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 130th Martian day, or sol, (De...

Eridania Basin Light-Toned Outcrops

This graphic depicts the relative shapes and distances from Mars for five active orbiter missions plus the planet's two natural satellites. It illustrates the potential for intersections of the spa...

This observation shows a wrinkle ridge in Solis Planum, located in the Thaumasia region of Mars, a high-elevation volcanic plain located south of the Valles Marineris canyon system and east of the ...

Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last ten years. In this image from NASA's Mars Reconnaissance Orbiter frost in and around t...

NASA's Mars Reconnaissance Orbiter has clocked more than a decade of service at the Red Planet and has yielded scientific discoveries and magnificent views of a distant world. These images taken by...

This image shows a lava channel, which lies just to the east of the largest volcano in the solar system: Olympus Mons.

This image shows part of Ladon Vallis, a long outflow channel found in the Southern Highlands on Mars.

This image from NASA's Mars Reconnaissance Orbiter (MRO) shows the western wall of a small pit that is located along the floor of a larger trough in Coprates Catena. Dark layers line the bottom; li...

This image acquired on August 1, 2018 by NASAs Mars Reconnaissance Orbiter, shows the Martian south polar cap full of pits that make it look like Swiss cheese.

This is a diagram that shows the launch phases for the Mars Reconnaissance Orbiter.

This dune field in Aonia Terra shows sand dunes with a variety of morphologies. These complex shapes often indicate that the dominating winds change direction, either over time or from one locatio...

This global map of Mars was acquired on Aug. 4, 2012, by the Mars Color Imager instrument on NASA's Mars Reconnaissance Orbiter.

Part of the canyon floor and wall rock in southwestern Melas Chasma on Mars meanders in a pattern resembling a dragon.

Back-and-forth blinking of this two-image animation shows movement of a sand dune on Mars. The images are part of a study published by Nature on May 9, 2012, reporting movement of Martian sand dune...

This image is located within Northern Sinus Meridiani, a region of ridged terrains and extensive stratigraphic layering. 

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter captured winter images of NASA's Phoenix Mars Lander surrounded by dry-ice frost on Mars.

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...

Five decades of successful NASA missions to the Red Planet, 1965-2015.

Countdown Nears: Final Tests

Artist’s concept of Comet Siding Spring approaching Mars, shown with NASA’s orbiters preparing to make science observations of this unique encounter.

This meteoroid impact crater on Mars was discovered using the black-and-white Context Camera aboard NASA’s Mars Reconnaissance Orbiter. The Context Camera took this image of the impact, which occur...

NASA's Mars rover Curiosity left the "Glenelg" area on July 4, 2013, on a "rapid transit route" to the entry point for the mission's next major destination, the lower layers of Mount Sharp.