12.13.2016 Now and Long Ago at Gale Crater, Mars
12.13.2016 Where's Boron? Mars Rover Detects It
10.03.2016 Curiosity Self-Portrait at 'Murray Buttes'
10.03.2016 Butte 'M9a' in 'Murray Buttes' on Mars
09.19.2016 Ribbon Cutting
09.09.2016 Farewell to Murray Buttes (Image 5)
09.09.2016 Farewell to Murray Buttes (Image 4)
09.09.2016 Farewell to Murray Buttes (Image 3)
09.09.2016 Farewell to Murray Buttes (Image 2)
09.09.2016 Farewell to Murray Buttes (Image 1)
08.26.2016 Out-of-this-World Records
03.30.2016 Erisa Hines
03.30.2016 Buzz Aldrin
02.12.2016 Women in Science
02.09.2016 Adam Steltzner, a JPL engineer
01.27.2016 Night Close-up of Martian Sand Grains
01.27.2016 Curiosity Self-Portrait at Martian Sand Dune
12.17.2015 Alteration Effects at Gale and Gusev Craters
12.17.2015 Full-Circle View Near 'Marias Pass' on Mars
12.11.2015 Surface Close-up of a Martian Sand Dune
12.11.2015 Martian Sand Disturbed by Rover Wheel
11.24.2015 Carbon Exchange and Loss Processes on Mars
11.17.2015 Chemical Laptop 1
Martian Sandstone Target "Windjana" Before and After BrushingThis two-step animation shows before and after views of a patch of sandstone scrubbed with the Dust Removal Tool, a wire-bristle brush, on NASA's Curiosity Mars rover. The brushed area is about 2.5 inches (6 centimeters) across. Both images were taken by the Mars Hand Lens Imager (MAHLI) camera on Curiosity's arm during the 612th Martian day, or sol, of the rover's work on Mars (April 26, 2014).
This rock target is called "Windjana," after a gorge in Western Australia. The brushing reveals a grey color, in contrast to redder dust coating. The rock's texture is fine-grained sandstone.
Curiosity's drill collects powdered sample material from the interior of a target rock. The rover delivers portions of the sample to analytical laboratory instruments onboard. The only two rocks previously drilled by Curiosity, "John Klein" and "Cumberland," are even finer-grained mudstone. Those two targets, examined in 2013, provided evidence of a lakebed environment from billions of years ago, with conditions favorable for microbial life.
Curiosity's Dust Removal Tool was built by Honeybee Robotics, New York. MAHLI was built by Malin Space Science Systems, San Diego. Both the brush and the camera can be seen in a photo of the turret at the end of Curiosity's arm, at http://photojournal.jpl.nasa.gov/catalog/PIA18088.
NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Science Laboratory Project for the NASA Science Mission Directorate, Washington. JPL designed and built the project's Curiosity rover.
Image Credit: NASA/JPL-Caltech/MSSS