06.21.2017 A.I. laser targeting
06.01.2017 Diagram of Lake Stratification on Mars
05.22.2017 NASA's Mars 2020 Rover Artist's Concept #1
05.15.2017 Putting Martian 'Tribulation' Behind
05.15.2017 From 'Tribulation' to 'Perseverance' on Mars
04.20.2017 Chemical Laptop Team
04.20.2017 Subcritical Water Extractor
04.20.2017 Chemical Laptop
04.20.2017 Atacama Landscape
03.30.2017 Measuring Mars' Atmosphere Loss
03.29.2017 Lifetime Achievement Award to Theisinger
03.29.2017 A Decade of Compiling the Sharpest Mars Map
03.21.2017 Break in Raised Tread on Curiosity Wheel
03.17.2017 COBALT/JPL team
03.09.2017 Back-to-Back Martian Dust Storms
02.27.2017 Swirling Dust in Gale Crater, Mars, Sol 1613
02.27.2017 Dust Devil Passes Near Martian Sand Dune
02.27.2017 Sand Moving Under Curiosity, One Day to Next
02.08.2017 Mars Reconnaissance Orbiter Observes Changes
01.26.2017 Mono Lake
01.25.2017 'Wing' Dike of Hardened Lava in New Mexico
01.25.2017 Blade-Like Martian Walls Outline Polygons
01.23.2017 Spirit And Opportunity By The Numbers
01.10.2017 Mars 2020 Rover - Artist's Concept
01.06.2017 Earth and Its Moon, as Seen From Mars
12.13.2016 Now and Long Ago at Gale Crater, Mars
12.13.2016 Where's Boron? Mars Rover Detects It
11.15.2016 Schiaparelli Impact Site on Mars, Stereo
11.03.2016 Schiaparelli Impact Site on Mars, in Color
10.17.2016 MAVEN Captures Rapid Cloud Formation
10.17.2016 Mars' Nightside Atmosphere
10.17.2016 Ultraviolet Image Near Mars' South Pole
10.17.2016 Ultraviolet Mars Reveals Cloud Formation
10.05.2016 Dust Haze Hiding the Martian Surface in 2001
10.04.2016 Test of Lander Vision System for Mars 2020
10.03.2016 A Sharpened Ultraviolet View of Mars
10.03.2016 Curiosity Self-Portrait at 'Murray Buttes'
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