Outflow Stream from Relatively Recent Martian Lake
This image taken by NASA's Mars Reconnaissance Orbiter covers an area about 8 miles wide in the northern Arabia Terra region of Mars. Researchers estimate the stream and the lakes it linked held water at some time in the range of 2-3 billion years ago.
Breccia-Conglomerate Rocks on Lower Mount Sharp, Mars (Stereo)
The rock in the foreground at right in this 3D scene is informally named 'Balombo.' The group of boulders is at a site called 'Bimbe.' NASA's Curiosity Mars Rover shows boulders composed of pebble-size and larger rock fragments.
Curiosity's Arm Over 'Marimba' Target on Mount Sharp
NASA's Curiosity Mars rover began close-up investigation of a target called 'Marimba,' on lower Mount Sharp, during the week preceding the fourth anniversary of the mission's dramatic sky-crane landing.
NASA to Launch Mars Rover in 2020 (Artist's Concept)
NASA's Mars 2020 Project will re-use the basic engineering of NASA's Mars Science Laboratory/Curiosity to send a different rover to Mars, with new objectives and instruments. This artist's concept depicts the top of the 2020 rover's mast.
Two Sizes of Ripples on Surface of Martian Sand Dune
Two sizes of wind-sculpted ripples are evident in this view from NASA's Curiosity of the top surface of 'Namib Dune' in the Bagnold Dune Field. The larger ripples are a type not seen on Earth nor previously recognized as a distinct type on Mars.
This observation from NASA's Mars Reconnaissance Orbiter spacecraft is of Noctis Labyrinthus, a highly tectonized region immediately to the west of Valles Marineris. It formed when Mars' crust stretched itself apart.
The giant sand dunes in Kaiser Crater, seen by NASA's Mars Reconnaissance Orbiter, experience gully erosion of the steep slip faces every year in late winter as the sun warms these slopes and seasonal carbon dioxide frost sublimates.
The dunes shown here, as seen by NASA's Mars Reconnaissance Orbiter spacecraft, form distinct dots and dashes. The 'dashes' are linear dunes formed by bi-directional winds, which are not traveling parallel to the dune.
Seasonal Cycles in Curiosity's First Two Martian Years
By monitoring weather throughout two Martian years since landing in Gale Crater in 2012, NASA's Curiosity Mars rover has documented seasonal patterns such as shown in these graphs of temperature, water-vapor content and air pressure.