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Countdown Nears: Final Tests
July 14, 2009
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This April 6, 2014, image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter shows numerous landslides in the vicinity of where an impact crat...
Landslides Near Fresh Crater on Mars
This anaglyph from HiRISE shows erosional features formed by seasonal frost near the south pole of Mars.
Erosion Features near the South Pole of Mars (Anaglyph)
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...
Colliding Sand Dunes in Aonia Terra
Download a PDF of the Mars Reconnaissance Orbiter Arival Press Kit.
Mars Reconnaissance Orbiter Arrival Press Kit
This image shows a cross-section of a portion of the north polar ice cap of Mars, derived from data acquired by the Mars Reconnaissance Orbiter's Shallow Radar (SHARAD), one of six instruments on t...
North Polar Cap Cross Section
These images from the NASA Mars Reconnaissance Orbiter show several impact scars on Mars made by pieces of the NASA Mars Science Laboratory spacecraft that the spacecraft shed just before entering ...
Impact Scars from MSL Cruise Stage and Two Balance Weights (Figure 3)
Artist’s concept of Comet Siding Spring approaching Mars, shown with NASA’s orbiters preparing to make science observations of this unique encounter.
NASA's Mars Orbiters Maneuvers as Comet Siding Spring Approaching Mars
The battered region of Arabia Terra is among the oldest terrain on Mars.
Arabia Dunes
This image acquired on October 28, 2018 by NASAs Mars Reconnaissance Orbiter, shows that gullies probably formed along the bouldery layers in the upper slopes of this unnamed crater.
Multi-Elevation Gullies
The Mars Climate Sounder instrument, shown here prior to its installation onto NASA's Mars Reconnaissance Orbiter for the mission's 2006 launch, will get a similar-looking sibling at Mars in 2016.
Climate Sounder Instrument for Mars Reconnaissance Orbiter
These dark streaks, also known as “slope streaks,” resulted from dust avalanches in an area of Mars called Acheron Fossae. The HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter captured them ...
HiRISE Spots Slope Streaks on Mars in Acheron Fossae
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...
Layers along a Pit in Coprates Catena
Researchers have found deposits of impact glass preserved in Martian craters, including Alga Crater, shown here.
Spectral Signals Indicating Impact Glass on Mars
This color thumbnail image was obtained by NASA's Curiosity rover during its descent to the surface of Mars on Aug. 5 PDT (Aug. 6 EDT).
Curiosity's Heat Shield in View
This image from NASA's Mars Reconnaissance Orbiter shows many new ice blocks compared to earlier images in 2006. One of the most actively changing areas on Mars are the steep edges of the North Pol...
Ice Block Avalanche
This image shows part of Ladon Vallis that is located within Ladon basin.
Light-Toned Layered Rock Outcrop in Ladon Valles (3-D)
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...
Context Camera Views an Impact Crater in Amazonis Planitia
NASA’s Perseverance Mars rover and Ingenuity helicopter were spotted on the surface of the Red Planet in this black-and-white image captured Feb. 26, 2022, by the HiRISE camera aboard NASA’s Mars R...
MRO's HiRISE Spots Perseverance and Ingenuity
NASA's Mars Reconnaissance Orbiter passes above a portion of the planet called Nilosyrtis Mensae in this artist's concept illustration.
Mars Reconnaissance Orbiter over Nilosyrtis
This false-color animation simulates a fly-around look at one of the places on Mars where dark streaks advance down slopes during warm seasons, possibly involving liquid water or brine. This site i...
Animation of Site of Seasonal Flows in Hale Crater, Mars
Explanation on how CRISM hyperspectral images are used to understand the history and formation of Valles Marineris, one of the largest canyons in the solar system, and how the data is used to unrav...
CRISM: Exploring the Geology of Mars
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...
'Baby Spider': Growth of a Martian Trough Network
Phobos from 5,800 Kilometers
Phobos from 6,800 Kilometers
Back-and-forth blinking of this two-image animation shows movement of ripples covering a sand dune on Mars.
Ripple Movement on Sand Dune in Nili Patera, Mars
This image acquired on December 8, 2018 by NASAs Mars Reconnaissance Orbiter, shows erosion of the surface revealing several shades of light toned layers, likely sedimentary deposits.
Layered History
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