Apollo 11 astronaut Buzz Aldrin, right, and Erisa Hines of NASA's Jet Propulsion Laboratory in Pasadena, California, try out the Microsoft HoloLens mixed-reality headset during a preview of "Destination: Mars" at Kennedy Space Center visitor complex in Florida.
A self-portrait taken by NASA's Curiosity rover taken on Sol 2082 (June 15, 2018). A Martian dust storm has reduced sunlight and visibility at the rover's location in Gale Crater.
Two images from the Mast Camera (Mastcam) on NASA's Curiosity rover depicting the change in the color of light illuminating the Martian surface since a dust storm engulfed Gale Crater. The left image shows the "Duluth" drill site on Sol 2058 (May 21); the right image is from Sol 2084 (June 17). The cherry red color is largely due to red dust grains in the atmosphere letting red light through to the surface, but not green or blue light.
This set of images from NASA's Mars Reconnaissance Orbiter shows a fierce dust storm is kicking up on Mars, with rovers on the surface indicated as icons.
These two views from NASA's Curiosity rover, acquired specifically to measure the amount of dust inside Gale Crater, show that dust has increased over three days from a major Martian dust storm.
NASA's Curiosity rover used an instrument called SAM (Sample Analysis at Mars) to detect seasonal changes in atmospheric methane in Gale Crater. The methane signal has been observed for nearly three Martian years (nearly six Earth years), peaking each summer.
The drill bit of NASA's Curiosity Mars rover over one of the sample inlets on the rover's deck. The inlets lead to Curiosity's onboard laboratories. This image was taken on Sol 2068 by the rover's Mast Camera (Mastcam).
A close-up image of a 2-inch-deep hole produced using a new drilling technique for NASA's Curiosity rover. The hole is about 0.6 inches across (1.6 centimeters). This image was taken by Curiosity's Mast Camera (Mastcam) on Sol 2057. It has been white-balanced and contrast-enhanced.
NASA's Curiosity rover successfully drilled a 2-inch-deep hole in a target called "Duluth" on May 20. It was the first rock sample captured by the drill since October 2016. This image was taken by Curiosity's Mast Camera (Mastcam) on Sol 2057. It has been white-balanced and contrast-enhanced.
A test of a new percussive drilling technique at NASA's JPL. Later this week, NASA's Curiosity rover will test percussive drilling on Mars for the first time since December 2016.
U.S. Vice President Mike Pence, right, is presented a plaque by JPL Director Michael Watkins during a tour of NASA's Jet Propulsion Laboratory, Saturday, April 28, 2018 in Pasadena, California. The plaque presents a view of the Mars Science Laboratory rover Curiosity on the surface of Mars.
This mosaic taken by NASA's Mars Curiosity rover looks uphill at Mount Sharp, which Curiosity has been climbing. Spanning the center of the image is an area with clay-bearing rocks that scientists are eager to explore; it could shed additional light on the role of water in creating Mount Sharp.
NASA's Curiosity Mars rover used a new drill method to produce a hole on February 26 in a target named Lake Orcadie. The hole marks the first operation of the rover's drill since a motor problem began acting up more than a year ago.
The surface of the Martian rock target in this stereo, close-up image from the Curiosity rover's MAHLI camera includes small hollows with a "swallowtail" shape characteristic of gypsum crystals. The view appears three-dimensional when seen through blue-red glasses with the red lens on the left. Click for full image and caption
This exposure of finely laminated bedrock on Mars includes tiny crystal-shaped bumps, plus mineral veins with both bright and dark material. This rock target, called "Jura," was imaged by the MAHLI camera on NASA's Curiosity Mars rover on Jan. 4, 2018, during Sol 1925 of the mission.
The stick-shaped features on this Martian rock are about the size of grains of rice. This view from the MAHLI camera on NASA's Curiosity Mars rover covers an area about 2 inches across, on a target called "Haroldswick." The sticks might be bits of dark material from mineral veins in this area.
A mineral vein with bright and dark portions dominates this image of a Martian rock target called "Rona," which is near the southern, upper edge of "Vera Rubin Ridge" on Mount Sharp.
Climbing "Vera Rubin Ridge" provided NASA's Curiosity Mars rover this vista of the interior and rim of Gale Crater, including much of the rover's route since its 2012 landing and features up to about 50 miles away. The left-eye camera of the rover's Mastcam took the component images Oct. 25, 2017.
A viewpoint on "Vera Rubin Ridge" provided NASA's Curiosity Mars rover this detailed look back over the area where it began its mission inside Gale Crater, plus more-distant features of the crater. The right-eye, telephoto-lens camera of the rover's Mastcam took the component images Oct. 25, 2017.
This image of the northwestern portion of Mars' Gale Crater and terrain north of it, from the European Space Agency's Mars Express orbiter, provides a locator map for some features visible in an October 2017 panorama from NASA's Curiosity Mars rover.
The Chemistry and Camera (ChemCam) instrument on NASA's Curiosity Mars rover examined a freshly brushed area on target rock 'Christmas Cove' and found spectral evidence of hematite, an iron-oxide mineral.
On a part of 'Vera Rubin Ridge' where rover-team researchers sought to determine whether dust coatings are hiding rocks' hematite content, the Mast Camera (Mastcam) on NASA's Curiosity Mars rover took this image of a rock surface that had been brushed with the rover's Dust Removal Tool.
This false-color image demonstrates how use of special filters available on the Mast Camera (Mastcam) of NASA's Curiosity Mars rover can reveal the presence of certain minerals in target rocks.
This pair of images from the Mast Camera (Mastcam) on NASA's Curiosity rover illustrates how special filters are used to scout terrain ahead for variations in the local bedrock.
This image from the Mars Hand Lens Imager (MAHLI) camera on NASA's Curiosity Mars rover shows effects of using the rover's wire-bristled Dust Removal Tool (DRT) on a rock target called 'Christmas Cove.'
NASA's Curiosity Mars rover conducted a test on Oct. 17, 2017, as part of the rover team's development of a new way to use the rover's drill. This image from Curiosity's front Hazcam shows the drill's bit touching the ground during assessment of measurements by a sensor on the rover's robotic arm.
This photo taken in the "Mars Yard" at NASA's Jet Propulsion Laboratory, Pasadena, California, on Aug. 1, 2017, shows a step in development of possible alternative techniques that NASA's Curiosity Mars rover might be able to use to resume drilling into rocks on Mars.
The team operating NASA's Curiosity Mars rover is developing techniques that the rover might be able to use to resume drilling into rocks on Mars. In this June 2017 photo, JPL robotics engineer Vladimir Arutyunov checks a test rover's drill bit at its contact point with a rock.
Clicking on the floating spheres in Access Mars lets users see actual photos taking by NASA's Curiosity rover that allowed scientists to make new discoveries.
Many members of NASA's Mars Science Laboratory Project, which operates the Curiosity rover on Mars, gathered for this 2016 team photo with a test rover in the "Mars Yard" at NASA's Jet Propulsion Laboratory, Pasadena, California.
This view of "Vera Rubin Ridge" from the ChemCam instrument on NASA's Curiosity Mars rover shows sedimentary layers, mineral veins and effects of wind erosion. ChemCam's telescopic Remote Micro-Imager took the 10 component images of this scene on Aug. 24, 2017, from about 141 feet away.
This view of "Vera Rubin Ridge" from the ChemCam instrument on NASA's Curiosity Mars rover shows sedimentary layers and fracture-filling mineral deposits. ChemCam's telescopic Remote Micro-Imager took the 10 component images of this scene on July 3, 2017, from a distance of about 377 feet.
The Mastcam on NASA's Curiosity Mars rover captured this view of "Vera Rubin Ridge" about two weeks before the rover starting to ascend this steep ridge on lower Mount Sharp.
The Mastcam on NASA's Curiosity Mars rover captured this view of "Vera Rubin Ridge" about two weeks before the rover starting to ascend this steep ridge on lower Mount Sharp.
Researchers used the Mastcam on NASA's Curiosity Mars rover to gain this detailed view of layers in "Vera Rubin Ridge" from just below the ridge. The scene combines 70 images taken with the Mastcam's right-eye, telephoto-lens camera, on Aug. 13, 2017.
Researchers used the Mastcam on NASA's Curiosity Mars rover to gain this detailed view of layers in "Vera Rubin Ridge" from just below the ridge. The scene combines 70 images taken with the Mastcam's right-eye, telephoto-lens camera, on Aug. 13, 2017.
"Vera Rubin Ridge," a favored destination for NASA's Curiosity Mars rover even before the rover landed in 2012, rises near the rover nearly five years later in this panorama from Curiosity's Mast Camera (Mastcam).
"Vera Rubin Ridge," a favored destination for NASA's Curiosity Mars rover even before the rover landed in 2012, rises near the rover nearly five years later in this panorama from Curiosity's Mastcam. The scene combines 23 images taken with the Mastcam's right-eye camera, on June 22, 2017.
Wispy clouds float across the Martian sky in this accelerated sequence of enhanced images taken on July 17, 2017, by the Navcam on NASA's Curiosity Mars rover.
Wispy clouds float across the Martian sky in this accelerated sequence of early-morning images taken on July 17, 2017, by the Navcam on NASA's Curiosity Mars rover.
Clouds drift across the sky above a Martian horizon in this accelerated sequence of enhanced images taken on July 17, 2017, by the Navcam on NASA's Curiosity Mars rover.
Five years since it landed near Mount Sharp on Mars in August 2017 and nearly three years since reaching the base of the mountain, NASA's Curiosity Mars rover is climbing toward multiple layers of Mount Sharp visible in this view from the rover's Mast Camera.
This map shows the route driven by NASA's Curiosity Mars rover, from the location where it landed in August 2012 to its location in July 2017 (Sol 1750), and its planned path to additional geological layers of lower Mount Sharp.
A rippled linear dune of dark Martian sand, "Nathan Bridges Dune," dominates this full-circle panorama from the Mastcam of NASA's Curiosity Mars rover. This dune was one research stop of the mission's campaign to investigate active Martian dunes. Nathan Bridges (1966-2017) helped lead that campaign
This view from the Curiosity Mars rover's Mastcam shows a dark mound, called "Ireson Hill," which rises about 16 feet above redder layered outcrop material on lower Mount Sharp, Mars, near a location where Curiosity examined a linear sand dune in February 2017.
This panorama from the Mast Camera (Mastcam) of NASA's Curiosity Mars rover shows details of "Vera Rubin Ridge," which stretches about 4 miles (6.5 kilometers), end-to-end, on the northwestern flank of lower Mount Sharp.
This early 2017 look ahead from the Mastcam of NASA's Curiosity Mars rover includes four geological layers to be examined by the mission, and higher reaches of Mount Sharp beyond the planned study area. "Vera Rubin Ridge" sits just above the reddish foreground rocks of the Murray formation.
A "scarecrow" rover at NASA's JPL drives over a sensor while testing a new driving algorithm. Engineers created the algorithm to reduce wheel wear on the Mars Curiosity rover.
This is how AEGIS sees the Martian surface. All targets found by the A.I. program are outlined: blue targets are rejected, while red are retained. The top-ranked target is shaded green; if there's a second-ranked target, it's shaded orange. These NavCam images have been contrast-balanced.
The feature that appears bright blue at the center of this scene is NASA's Curiosity Mars rover on the northwestern flank of Mount Sharp, viewed by NASA's Mars Reconnaissance Orbiter. Curiosity is approximately 10 feet long and 9 feet wide (3.0 meters by 2.8 meters).
This diagram presents some of the processes and clues related to a long-ago lake on Mars that became stratified, with the shallow water richer in oxidants than deeper water was.
This view from the Mast Camera (Mastcam) on NASA's Curiosity Mars rover shows two scales of ripples, plus other textures, in an area where the mission examined a linear-shaped dune in the Bagnold dune field on lower Mount Sharp in March and April 2017.
This 360-degree scene from the Mastcam on NASA's Curiosity Mars rover includes part of a linear-shaped dune the rover examined in early 2017 for comparison with what it found previously at crescent-shaped dunes. The view shows the dark, rippled surface of the active dune, near sedimentary bedrock.
Two of the raised treads, called grousers, on the left middle wheel of NASA's Curiosity Mars rover broke during the first quarter of 2017, including the one seen partially detached at the top of the wheel in this image from the Mars Hand Lens Imager (MAHLI) camera on the rover's arm.
This sequence of images shows a dust-carrying whirlwind, called a dust devil, on lower Mount Sharp inside Gale Crater, as viewed by NASA's Curiosity Mars Rover during the summer afternoon of the rover's 1,613rd Martian day, or sol (Feb. 18, 2017).
Dust devils dance in the distance in this sequence of images taken by the Navigation Camera on NASA's Curiosity Mars rover on Feb. 12, 2017, during the afternoon of the rover's 1,607th Martian day, or sol.
Beyond a dark sand dune closer to the rover, a Martian dust devil passes in front of the horizon in this sequence of images from NASA's Curiosity Mars rover. The rover's Navigation Camera made this series of observations on Feb. 4, 2017, during the local afternoon in Mars' Gale Crater.
This sequence of images shows a dust-carrying whirlwind, called a dust devil, scooting across ground inside Gale Crater, as observed on the local summer afternoon of NASA's Curiosity Mars Rover's 1,597th Martian day, or sol (Feb. 1, 2017). Timing is accelerated in this animation.
This map shows the two locations of a research campaign by NASA's Curiosity Mars rover mission to investigate active sand dunes on Mars. In late 2015, Curiosity reached crescent-shaped dunes, called barchans. In February 2017, the rover reached a location where the dunes are linear in shape.
The left side of this 360-degree panorama from NASA's Curiosity Mars rover shows the long rows of ripples on a linear shaped dune in the Bagnold Dune Field on the northwestern flank of Mount Sharp. The rover's Navigation Camera recorded the component images of this mosaic on Feb. 5, 2017.
This pair of images shows effects of one Martian day of wind blowing sand underneath NASA's Curiosity Mars rover on a non-driving day for the rover. Each image was taken just after sundown by the rover's Mars Descent Imager (MARDI). The area of ground shown spans about 3 feet left-to-right.
A grid of small polygons on the Martian rock surface near the right edge of this view may have originated as cracks in drying mud more than 3 billion years ago. Multiple Dec. 20, 2016, images from the Mastcam on NASA's Curiosity Mars rover were combined for this view of a rock called "Squid Cove."
This view of a Martian rock slab called "Old Soaker," which has a network of cracks that may have originated in drying mud, comes from the Mast Camera (Mastcam) on NASA's Curiosity Mars rover. It was taken on Dec. 20, 2016. The slab is about 4 feet long.
The network of cracks in this Martian rock slab called "Old Soaker" may have formed from the drying of a mud layer more than 3 billion years ago. The view spans about 3 feet (90 centimeters) left-to-right and combines three images taken by the MAHLI camera on the arm of NASA's Curiosity Mars rover.
This pair of drawings depicts the same location at Gale Crater on at two points in time: now and billions of years ago. Water moving beneath the ground, as well as water above the surface in ancient rivers and lakes, provided favorable conditions for microbial life, if Mars has ever hosted life.
The foreground of this scene from the Mastcam on NASA's Curiosity Mars rover shows purple-hued rocks near the rover's late-2016 location. The middle distance includes future destinations for the rover. Variations in color of the rocks hint at the diversity of their composition on lower Mount Sharp.
This graphic maps locations of the sites where NASA's Curiosity Mars rover collected its first 19 rock or soil samples for laboratory analysis inside the vehicle. It also presents images of the drilled holes where 15 rock-powder samples were acquired, most recently at "Sebina," on Oct. 20, 2016.
This graphic portrays two hypotheses about how the element boron ended up in calcium sulfate veins found within mudstone layers of Mars' lower Mount Sharp.
Examination of a calcium sulfate vein called "Diyogha" by the ChemCam instrument on NASA's Curiosity Mars rover found boron, sodium and chlorine. An image from the rover's Mastcam, at left, provides context for the magnified image and composition information from ChemCam, at right.
The highest concentration of boron measured on Mars, as of late 2016, is in this mineral vein examined with the ChemCam instrument on NASA's Curiosity rover on Aug, 25, 2016. Orange bars indicate boron content at points in the calcium sulfate vein. The context image is from Curiosity's Mastcam.
This map shows the route driven by NASA's Curiosity Mars rover (blue line) and locations where the rover's ChemCam instrument detected the element boron (dots, colored by abundance of boron according to the key at right). The inset is a blowup of the most recent portion of the traverse.
This graphic shows proportions of minerals identified by the Curiosity Mars rover's CheMin instrument in mudstone outcrops at "Yellowknife Bay" in 2013 and at "Murray Buttes" in 2016. For example, the rover found more hematite and less magnetite at Murray Buttes, compared with Yellowknife Bay.
This graphic illustrates how dimensions of clay minerals' crystal structure are affected by which ions are present in the mineral. The CheMin instrument on NASA's Curiosity Mars rover identified different clay minerals this way at two sites in Gale Crater: "Murray Buttes" and "Yellowknife Bay."
Data graphed here from the Chemistry and Camera (CheMin) instrument on NASA's Mars Curiosity rover show a difference between clay minerals in powder drilled from mudstone outcrops at two locations in Mars' Gale Crater: "Yellowknife Bay" and "Murray Buttes."
This series of pie charts shows similarities and differences in the mineral composition of mudstone at 10 sites where NASA's Curiosity Mars rover collected rock-powder samples and analyzed them with the rover's Chemistry and Mineralogy (CheMin) instrument.
This graphic depicts aspects of the driving distance, elevation, geological units and time intervals of NASA's Curiosity Mars rover mission, as of late 2016. The vertical dimension is exaggerated 14-fold compared with the horizontal dimension, for presentation-screen proportions.
This map shows the route driven by NASA's Curiosity Mars rover from the location where it landed in August 2012 to its location in December 2016, which is in the upper half of a geological unit called the Murray Formation, on lower Mount Sharp.
This Dec. 2, 2016, view from the Navigation Camera (Navcam) on the mast of NASA's Curiosity Mars Rover shows rocky ground within view while the rover was working at an intended drilling site called "Precipice" on lower Mount Sharp.
A NASA radio on Europe's Trace Gas Orbiter, which reached Mars in October 2016, has succeeded in its first test of receiving data from NASA Mars rovers, both Opportunity and Curiosity. This graphic depicts the geometry of the relay from Opportunity to the orbiter, which then sent the data to Earth.
The dark, smooth-surfaced rock at the center of this Oct. 30, 2016, image from the Mast Camera (Mastcam) on NASA's Curiosity Mars rover was examined with laser pulses and confirmed to be an iron-nickel meteorite. It is about the size of a golf ball.
The dark, golf-ball-size object in this composite, colorized view from the ChemCam instrument on NASA's Curiosity Mars rover is a nickel-iron meteorite, as confirmed by analysis using laser pulses from ChemCam on Oct. 30, 2016. The grid of bright spots on the rock resulted from the laser pulses.
This September 2016 self-portrait of NASA's Curiosity Mars rover shows the vehicle at the "Quela" drilling location in the scenic "Murray Buttes" area on lower Mount Sharp. The panorama was stitched together from multiple images taken by the MAHLI camera at the end of the rover's arm.
This 360-degree panorama was acquired on Sept. 4, 2016, by the Mast Camera on NASA's Curiosity Mars rover while the rover was in a scenic area called "Murray Buttes" on lower Mount Sharp. The flat-topped mesa near the center of the scene rises to about 39 feet above the surrounding plain.
This map shows the route driven by NASA's Curiosity Mars rover from the location where it landed in August 2012 to its location in September 2016 at "Murray Buttes," and the path planned for reaching destinations at "Hematite Unit" and "Clay Unit" on lower Mount Sharp.
This graphic maps locations of the sites where NASA's Curiosity Mars rover collected its first 18 rock or soil samples for laboratory analysis inside the vehicle. It also presents images of the drilled holes where 14 rock-powder samples were acquired, most recently at "Quela," on Sept. 18, 2016.
The top of the butte in this Sept. 1, 2016, scene from the Mast Camera (Mastcam) on NASA's Curiosity Mars rover stands about 16 feet above the rover and about 82 feet east-southeast of the rover. The site is in the "Murray Buttes" area of lower Mount Sharp, and this particular butte is called "M9a."
The mesa in the center of this scene from the "Murray Buttes" area on Mars is longer than a football field. The panorama combines images taken by the Mastcam on NASA's Curiosity Mars rover on Aug. 22 and Aug. 23, 2016.
The two prominent mesas in this Aug. 18, 2016, view of Mars' "Murray Buttes" region from the Curiosity Mars rover's Mastcam are about 260 feet (about 80 meters) apart. The one on the right is about 33 feet high, and its top is about 270 feet from the rover's position when the images were taken.
Processes in Mars' surface material can explain why particular xenon (Xe) and krypton (Kr) isotopes are more abundant in the Martian atmosphere than expected, as measured by NASA's Curiosity rover. Cosmic rays striking barium (Ba) or bromine (Br) atoms can alter isotopic ratios of xenon and krypton.
Apollo 11 astronaut Buzz Aldrin, right, and Erisa Hines of NASA's Jet Propulsion Laboratory in Pasadena, California, try out the Microsoft Hololens mixed reality headset during a preview of "Destination: Mars" at Kennedy Space Center visitor complex in Florida.
