Showing posts with label John Klein. Show all posts
Showing posts with label John Klein. Show all posts

Saturday, June 28, 2014

Mars Rover Curiosity Self-Portrait at 'Windjana' Drilling Site

Image Credit: NASA/JPL-Caltech/MSSS

NASA's Curiosity Mars rover used the camera at the end of its arm in April and May 2014 to take dozens of component images combined into this self-portrait where the rover drilled into a sandstone target called "Windjana."

The camera is the Mars Hand Lens Imager (MAHLI), which previously recorded portraits of Curiosity at two other important sites during the mission: "Rock Nest" and "John Klein"

Winjana is within a science waypoint site called "The Kimberley," where sandstone layers with different degrees of resistance to wind erosion are exposed close together.

The view does not include the rover's arm. It does include the hole in Windjana produced by the hammering drill on Curiosity's arm collecting a sample of rock powder from the interior of the rock.

 The hole is surrounded by grayish cuttings on top of the rock ledge to the left of the rover. The Mast Camera (Mastcam) atop the rover's remote sensing mast is pointed at the drill hole.

The Mastcam image of the drill hole from that perspective. The hole is 0.63 inch (1.6 centimeters) in diameter. The rover's wheels are 20 inches (0.5 meter) in diameter.

Most of the component frames of this mosaic view were taken during the 613th Martian day, or sol, of Curiosity's work on Mars (April 27, 2014).

 Frames showing Windjana after completion of the drilling were taken on Sol 627 (May 12, 2014). The hole was drilled on Sol 621 (May 5, 2014).

MAHLI was built by Malin Space Science Systems, San Diego. 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.


Monday, December 9, 2013

NASA Curiosity Rover: Ancient Mars Lake Could Have Supported Life

Mastcam mosaic of the Yellowknife Bay formation. This is a view from the base of an exposed section up through Sheepbed, Gillespie Lake, and basal Glenelg members. 

Locations of drill holes and Alpha Particle X-Ray Spectrometer (A PXS) measurements are shown. Image released Dec. 9, 2013. Credit: Science/AAAS



The lake could have potentially supported a class of microbes called chemolithoautotrophs, which obtain energy by breaking down rocks and minerals.

Here on Earth, chemolithoautotrophs are commonly found in habitats beyond the reach of sunlight, such as caves and hydrothermal vents on the ocean floor.

Sunday, May 19, 2013

NASA Mars Rover Curiosity at 'Cumberland'

NASA's Mars rover Curiosity used its front left Hazard-Avoidance Camera for this image of the rover's arm over the drilling target "Cumberland" during the 275th Martian day, or sol, of the rover's work on Mars (May 15, 2013).

The rover team plans to use Curiosity's drill to collect a powdered sample from the interior of the rock for analysis by laboratory instruments inside the rover. 

This is the mission's second rock-drilling target.

The rover drove from its position beside the first drilling target, "John Klein," to its position beside Cumberland with drives of 121 inches (308 centimeters) on Sol 273 (May 13) and 26.6 inches (67.5 centimeters) on Sol 275. Curiosity's total odometry on Mars is now 2,385 feet (727 meters).

Image credit: NASA/JPL-Caltech

Sunday, May 12, 2013

NASA Mars Curiosity Rover: Team Selects Cumberland as Second Drilling Target

This map shows the location of "Cumberland," the second rock-drilling target for NASA's Mars rover Curiosity.

It also Shows the rover's first drilling target, "John Klein," within the southwestern lobe of a shallow depression called "Yellowknife Bay." 

Cumberland, like John Klein, is a patch of flat-lying bedrock with pale veins and bumpy surface texture. 

The bumpiness is due to erosion-resistant nodules within the rock, which have been identified as concretions resulting from the action of mineral-laden water. 

Credit: NASA/JPL-Caltech/Univ. of Arizona

The team operating NASA's Curiosity Mars rover has selected a second target rock for drilling and sampling. The rover will set course to the drilling location in coming days.

This second drilling target, called "Cumberland," lies about nine feet (2.75 meters) west of the rock where Curiosity's drill first touched Martian stone in February.



Curiosity took the first rock sample ever collected on Mars from that rock, called "John Klein." The rover found evidence of an ancient environment favorable for microbial life.

Both rocks are flat, with pale veins and a bumpy surface. They are embedded in a layer of rock on the floor of a shallow depression called "Yellowknife Bay."

This second drilling is intended to confirm results from the first drilling, which indicated the chemistry of the first powdered sample from John Klein was much less oxidizing than that of a soil sample the rover scooped up before it began drilling.

Dawn Sumner
"We know there is some cross-contamination from the previous sample each time," said Dawn Sumner, a long-term planner for Curiosity's science team at the University of California at Davis.

"For the Cumberland sample, we expect to have most of that cross-contamination come from a similar rock, rather than from very different soil."

Although Cumberland and John Klein are very similar, Cumberland appears to have more of the erosion-resistant granules that cause the surface bumps.

The bumps are concretions, or clumps of minerals, which formed when water soaked the rock long ago.

Analysis of a sample containing more material from these concretions could provide information about the variability within the rock layer that includes both John Klein and Cumberland.

Mission engineers at NASA's Jet Propulsion Laboratory in Pasadena, Calif., recently finished upgrading Curiosity's operating software following a four-week break.


Wednesday, May 1, 2013

NASA Mars Curiosity Rover image mosaic: John Klein Drill site

This mosaic, stitched together from more than 40 raw images taken Jan. 25-26, 2013, shows NASA's Mars rover Curiosity at the John Klein drill site with arm deployed and massive Mt. Sharp in the background.

Click on the image to see a larger view.

CREDIT: NASA/JPL-Caltech/Ken Kremer/Marco Di Lorenzo

Wednesday, April 24, 2013

NASA Mars Curiosity 3D Stereo View from 'John Klein' to Mount Sharp


Left and right eyes of the Navigation Camera (Navcam) in NASA's Curiosity Mars rover took the dozens of images combined into this stereo scene of the rover and its surroundings. 

The component images were taken during the 166th, 168th and 169th Martian days, or sols, of Curiosity's work on Mars (Jan. 23, 25 and 26, 2013). 

The scene appears three dimensional when viewed through red-blue glasses with the red lens on the left. It spans 360 degrees, with Mount Sharp on the southern horizon.

In the center foreground, the rover's arm holds the tool turret above a target called "Wernecke" on the "John Klein" patch of pale-veined mudstone. 

On Sol 169, Curiosity used its dust-removing brush and Mars Hand Lens Imager (MAHLI) on Wernecke. 

About two weeks later, Curiosity used its drill at a point about 1 foot (30 centimeters) to the right of Wernecke to collect the first drilled sample from the interior of a rock on Mars. 

This anaglyph was made with the images as captured by the Curiosity. Another version with the seams in the sky eliminated and cropped for optimal 3-D viewing can be seen at PIA16925.

Separate left-eye and right-eye mosaics are combined into the stereo view.

NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Science Laboratory Project for NASA's Science Mission Directorate, Washington. JPL designed and built the project's Curiosity rover and the rover's Navcam.

› Full view

Image credit: NASA/JPL-Caltech

Monday, February 11, 2013

NASA Curiosity Rover Collects First Martian Bedrock Sample

At the center of this image from NASA's Curiosity rover is the hole in a rock called "John Klein" where the rover conducted its first sample drilling on Mars. 

The drilling took place on Feb. 8, 2013, or Sol 182, Curiosity's 182nd Martian day of operations. 

Several preparatory activities with the drill preceded this operation, including a test that produced the shallower hole on the right two days earlier, but the deeper hole resulted from the first use of the drill for rock sample collection. Image credit: NASA/JPL-Caltech/MSSS.

NASA's Curiosity rover has, for the first time, used a drill carried at the end of its robotic arm to bore into a flat, veiny rock on Mars and collect a sample from its interior. This is the first time any robot has drilled into a rock to collect a sample on Mars.

The fresh hole, about 0.63 inch (1.6 centimeters) wide and 2.5 inches (6.4 centimeters) deep in a patch of fine-grained sedimentary bedrock, can be seen in images and other data Curiosity beamed to Earth Saturday. The rock is believed to hold evidence about long-gone wet environments. In pursuit of that evidence, the rover will use its laboratory instruments to analyze rock powder collected by the drill.

"The most advanced planetary robot ever designed is now a fully operating analytical laboratory on Mars," said John Grunsfeld, NASA associate administrator for the agency's Science Mission Directorate. "This is the biggest milestone accomplishment for the Curiosity team since the sky-crane landing last August, another proud day for America."

For the next several days, ground controllers will command the rover's arm to carry out a series of steps to process the sample, ultimately delivering portions to the instruments inside.

"We commanded the first full-depth drilling, and we believe we have collected sufficient material from the rock to meet our objectives of hardware cleaning and sample drop-off," said Avi Okon, drill cognizant engineer at NASA's Jet Propulsion Laboratory, Pasadena, Calif.

Rock powder generated during drilling travels up flutes on the bit. The bit assembly has chambers to hold the powder until it can be transferred to the sample-handling mechanisms of the rover's Collection and Handling for In-Situ Martian Rock Analysis (CHIMRA) device.

Before the rock powder is analyzed, some will be used to scour traces of material that may have been deposited onto the hardware while the rover was still on Earth, despite thorough cleaning before launch.

"We'll take the powder we acquired and swish it around to scrub the internal surfaces of the drill bit assembly," said JPL's Scott McCloskey, drill systems engineer. "Then we'll use the arm to transfer the powder out of the drill into the scoop, which will be our first chance to see the acquired sample."

"Building a tool to interact forcefully with unpredictable rocks on Mars required an ambitious development and testing program," said JPL's Louise Jandura, chief engineer for Curiosity's sample system. "To get to the point of making this hole in a rock on Mars, we made eight drills and bored more than 1,200 holes in 20 types of rock on Earth."

Inside the sample-handling device, the powder will be vibrated once or twice over a sieve that screens out any particles larger than six-thousandths of an inch (150 microns) across. Small portions of the sieved sample will fall through ports on the rover deck into the Chemistry and Mineralogy (CheMin) instrument and the Sample Analysis at Mars (SAM) instrument. These instruments then will begin the much-anticipated detailed analysis.

The rock Curiosity drilled is called "John Klein" in memory of a Mars Science Laboratory deputy project manager who died in 2011. Drilling for a sample is the last new activity for NASA's Mars Science Laboratory Project, which is using the car-size Curiosity rover to investigate whether an area within Mars' Gale Crater has ever offered an environment favorable for life.