Showing posts with label Mass. Show all posts
Showing posts with label Mass. Show all posts
Sunday, April 27, 2014
NASA Mars Orbiter Spies Rover Near Martian Butte
Scientists
using NASA's Curiosity Mars rover are eyeing a rock layer surrounding the base
of a small butte, called "Mount Remarkable," as a target for
investigating with tools on the rover's robotic arm.
The rover works
near this butte in an image taken on April 11 by the High Resolution Imaging
Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter
.
A rover's-eye
view of Mount Remarkable and surroundings as seen from Curiosity's position in
that HiRISE image is available in a mosaic of images from Curiosity's
Navigation Camera (Navcam).
The butte
stands about 16 feet (5 meters) high. Curiosity's science team refers to the
rock layer surrounding the base of Mount Remarkable as the "middle
unit" because its location is intermediate between rocks that form buttes
in the area and lower-lying rocks that show a pattern of striations.
Depending on
what the mission scientists learn from a close-up look at the rock and
identification of chemical elements in it, a site on this middle unit may
become the third rock that Curiosity samples with its drill. The rover carries
laboratory instruments to analyze rock powder collected by the drill. The
mission's first two drilled samples, in an area called Yellowknife Bay near
Curiosity's landing site, yielded evidence last year for an ancient lakebed
environment with available energy and ingredients favorable for microbial life.
The rover's
current location, where multiple types of rocks are exposed close together, is
called "the Kimberley." Here and, later, at outcrops on the slope of
Mount Sharp inside Gale Crater, researchers plan to use Curiosity's science
instruments to learn more about habitable past conditions and environmental
changes
.
NASA's Jet
Propulsion Laboratory, a division of Caltech in Pasadena, manages the Mars
Science Laboratory Project for NASA's Science Mission Directorate, Washington.
The project designed and built Curiosity and operates the rover on Mars.
Source : www.nasa.com
Friday, April 18, 2014
NASA's Curiosity Mars Rover Views Striated Ground
The foreground rocks are in an outcrop called
"Junda," which the rover passed during a drive of 328 feet (100
meters) on Feb. 19. It paused during the drive to take the component
images of the scene, then finished the day's drive. A location still
ahead, called "Kimberley," where researchers plan to suspend driving
for a period of science investigations, also features ground with striations.
NASA's Mars Science Laboratory Project is using
Curiosity to assess ancient habitable environments and major changes in Martian
environmental conditions. JPL, a division of the California Institute of
Technology in Pasadena, built the rover and manages the project for NASA's
Science Mission Directorate in Washington.
Source : www.nasa.gov
Source : www.nasa.gov
Saturday, January 19, 2013
NASA's Next Mars Rover on a Test Drive
Rover
In some sense, the Mars Science Laboratory rover's parts will be similar to
what any living creature would need to keep it "alive" and able to
explore.
The rover will have a:
- body: a structure that protects the rovers´ "vital
organs"
- brains: computers to process information
- temperature controls: internal
heaters, a layer of insulation, and more
- "neck and head": a
mast for the cameras to give the rover a human-scale view
- eyes
and other "senses":
cameras and instruments that give the rover information about its
environment
- arm
and "hand": a way to extend its reach and
collect rock samples for study
- wheels
and "legs": parts for mobility
- energy: batteries and power
- communications: antennas for "speaking" and
"listening"
Fast Facts
Mission name: Mars Science Laboratory
Rover name: Curiosity rover
Size: About the size of a
small SUV -- 10 feet long (not including the arm), 9 feet wide and 7 feet tall
-- (about 3 meters long (not including the arm), 2.7 meters wide, and 2.2
meters tall), or about the height of a basketball player.
Arm Reach: About 7 feet (2.2
meters)
Weight: 900 kilograms (2,000
pounds)
Features: Geology lab,
rocker-bogie suspension, rock-vaporizing laser and lots of cameras
Mission: To search areas of
Mars for past or present conditions favorable for life, and conditions capable
of preserving a record of life
Launched:
7:02 a.m. PST, Nov. 26, 2011
(10:02 a.m. EST)
7:02 a.m. PST, Nov. 26, 2011
(10:02 a.m. EST)
Landed:
10:32 p.m. PDT, Aug. 5, 2012
(1:32 a.m. EDT, Aug. 6, 2012)
10:32 p.m. PDT, Aug. 5, 2012
(1:32 a.m. EDT, Aug. 6, 2012)
Length of mission on Mars: The prime mission will last one Mars year or about 23 Earth
months.
Friday, January 11, 2013
NASA's Big Mars Rover Makes First Use of its Brush
NASA's
Mars rover Curiosity has completed first-time use of a brush it carries to
sweep dust off rocks.
Nearing
the end of a series of first-time uses of the rover's tools, the mission has
cleared dust away from a targeted patch on a flat Martian rock using the Dust
Removal Tool.
The
tool is a motorized, wire-bristle brush designed to prepare selected rock
surfaces for enhanced inspection by the rover's science instruments. It is
built into the turret at the end of the rover's arm. In particular, the Alpha
Particle X-ray Spectrometer and the Mars Hand Lens Imager, which share the
turret with the brush and the rover's hammering drill, can gain information
after dust removal that would not be accessible from a dust-blanketed rock.
Choosing
an appropriate target was crucial for the first-time use of the Dust Removal
Tool. The chosen target, called "Ekwir_1," is on a rock in the
"Yellowknife Bay" area of Mars' Gale Crater. The rover team is also
evaluating rocks in that area as potential targets for first use of the rover's
hammering drill in coming weeks.
"We
wanted to be sure we had an optimal target for the first use," said Diana
Trujillo of NASA's Jet Propulsion Laboratory, Pasadena, Calif., the mission's
activity lead for the Dust Removal Tool. "We need to place the instrument
within less than half an inch of the target without putting the hardware at
risk. We needed a flat target, one that wasn't rough, one that was covered with
dust. The results certainly look good."
Honeybee
Robotics, New York, N.Y., built the Dust Removal Tool for Curiosity, as well as
tools for two previous Mars rovers, Spirit and Opportunity, which included wire
brushes plus rock-grinding mechanisms.
NASA's Mars Science Laboratory project is using Curiosity to
investigate whether the study area within Gale Crater has offered environmental
conditions favorable for microbial life. JPL, a division of the California
Institute of Technology in Pasadena, manages the Mars Science Laboratory
mission for the NASA Science Mission Directorate, Washington.
Monday, January 7, 2013
Curiosity Rover Explores 'Yellowknife Bay'
![]() |
| The NASA Mars rover Curiosity used its left Navigation Camera to record this view of the step down into a shallow depression called "Yellowknife Bay." Image credit: NASA/JPL-Caltech |
This map traces where NASA's Mars rover
Curiosity drove between landing at a site subsequently named "Bradbury
Landing," and the position reached during the mission's 130th Martian day,
or sol, (Dec. 17, 2012). Image credit: NASA/JPL-Caltech/Univ. of Arizona
Mission
status report
The
NASA Mars rover Curiosity this week is driving within a shallow depression
called "Yellowknife Bay," providing information to help researchers
choose a rock to drill.
Using
Curiosity's percussive drill to collect a sample from the interior of a rock, a
feat never before attempted on Mars, is the mission's priority for early 2013.
After the powdered-rock sample is sieved and portioned by a sample-processing
mechanism on the rover's arm, it will be analyzed by instruments inside
Curiosity.
Yellowknife
Bay is within a different type of terrain from what the rover has traversed
since landing inside Mars' Gale Crater on Aug. 5, PDT (Aug. 6, UTC). The
terrain Curiosity has entered is one of three types that intersect at a
location dubbed "Glenelg," chosen as an interim destination about two
weeks after the landing.
Curiosity
reached the lip of a 2-foot (half-meter) descent into Yellowknife Bay with a
46-foot (14-meter) drive on Dec. 11. The next day, a drive of about 86 feet
(26.1 meters) brought the rover well inside the basin. The team has been
employing the Mast Camera (Mastcam) and the laser-wielding Chemistry and Camera
(ChemCam) for remote-sensing studies of rocks along the way.
On
Dec. 14, Curiosity drove about 108 feet (32.8 meters) to reach rock targets of
interest called "Costello" and "Flaherty." Researchers used
the Alpha Particle X-Ray Spectrometer (APXS) and Mars Hand Lens Imager (MAHLI)
at the end of the rover's arm to examine the targets. After finishing those
studies, the rover drove again on Dec. 17, traveling about 18 feet (5.6 meters)
farther into Yellowknife Bay. That brings the mission's total driving distance
to 0.42 mile (677 meters) since Curiosity's landing.
One
additional drive is planned this week before the rover team gets a holiday
break. Curiosity will continue studying the Martian environment from its
holiday location at the end point of that drive within Yellowknife Bay. The
mission's plans for most of 2013 center on driving toward the primary science
destination, a 3-mile-high (5-kilometer) layered mound called Mount Sharp.
NASA's
Mars Science Laboratory Project is using Curiosity during a two-year prime
mission to assess whether areas inside Gale Crater ever offered a habitable
environment for microbes. NASA's Jet Propulsion Laboratory, a division of the
California Institute of Technology in Pasadena, manages the project for NASA's
Science Mission Directorate in Washington.
Saturday, December 29, 2012
Mars Rover Self-Portrait Shoot Uses Arm Choreography
The
robotic arm on NASA's Mars rover Curiosity held the rover's Mars Hand Lens
Imager (MAHLI) camera in more than 50 positions in one day to generate a single
scene combining all the images, creating a high-resolution, full-color portrait
of the rover itself.
A
larger version of the previously released self-portrait is now available
online, along with an animation video showing how it was taken, and a practice
self-portrait taken earlier by Curiosity's test-rover double on Earth.
The animation video at:http://www.nasa.gov/multimedia/videogallery/index.html?media_id=156880341depicts how the rover moved its robotic arm on
Oct. 31 to record the component images that would be combined into the
self-portrait. The same software that rover planners use when designing the
rover's moves was used to generate the animation.
The arm movements were practiced on Earth first, using the
closest double that exists for Curiosity, the Vehicle System Test Bed rover at
NASA's Jet Propulsion Laboratory, Pasadena, Calif. The rover team typically
uses that rover to test maneuvers before they are tried by Curiosity. The
Vehicle System Test Bed's self-portrait, from the engineering model of MAHLI on
that rover, is at:http://photojournal.jpl.nasa.gov/catalog/PIA16458 .
MAHLI
is mounted on a turret at the end of Curiosity's robotic arm. The arm is not
visible in the portrait because the arm was positioned out of the shot in the
images or portions of images used in the mosaic. Some images taken during the
day show portions of the arm. However, the Martian ground that the arm hides
from view in those images is visible in alternative images chosen for the
mosaic, taking the arm out of the scene.
During
a two-year prime mission, researchers are using Curiosity's 10 science instruments
to assess whether the study area in Gale Crater ever has offered environmental
conditions favorable for microbial life.
Malin
Space Science Systems, San Diego, developed, built and operates MAHLI. JPL, 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.
Wednesday, December 26, 2012
NASA Mars Rover Fully Analyzes First Soil Samples
![]() |
| This is a view of the third (left) and fourth (right) trenches made by the 1.6-inch-wide (4-centimeter-wide) scoop on NASA's Mars rover Curiosity in October 2012. Image credit: NASA/JPL-Caltech/MSSS |
NASA's Mars Curiosity rover has used its full array of
instruments to analyze Martian soil for the first time, and found a complex
chemistry within the Martian soil. Water and sulfur and chlorine-containing
substances, among other ingredients, showed up in samples Curiosity's arm
delivered to an analytical laboratory inside the rover.
Detection of the substances during this early phase of the
mission demonstrates the laboratory's capability to analyze diverse soil and
rock samples over the next two years. Scientists also have been verifying the
capabilities of the rover's instruments.
Curiosity is the first Mars rover able to scoop soil into
analytical instruments. The specific soil sample came from a drift of windblown
dust and sand called "Rocknest." The site lies in a relatively flat
part of Gale Crater still miles away from the rover's main destination on the
slope of a mountain called Mount Sharp. The rover's laboratory includes the
Sample Analysis at Mars (SAM) suite and the Chemistry and Mineralogy (CheMin)
instrument. SAM used three methods to analyze gases given off from the dusty
sand when it was heated in a tiny oven. One class of substances SAM checks for
is organic compounds -- carbon-containing chemicals that can be ingredients for
life.
"We have no definitive detection of Martian organics at
this point, but we will keep looking in the diverse environments of Gale
Crater," said SAM Principal Investigator Paul Mahaffy of NASA's Goddard
Space Flight Center in Greenbelt, Md.
Curiosity's APXS instrument and the Mars Hand Lens Imager
(MAHLI) camera on the rover's arm confirmed Rocknest has chemical-element
composition and textural appearance similar to sites visited by earlier NASA
Mars rovers Pathfinder, Spirit and Opportunity.
Curiosity's team selected Rocknest as the first scooping site
because it has fine sand particles suited for scrubbing interior surfaces of
the arm's sample-handling chambers. Sand was vibrated inside the chambers to
remove residue from Earth. MAHLI close-up images of Rocknest show a dust-coated
crust one or two sand grains thick, covering dark, finer sand.
"Active drifts on Mars look darker on the surface,"
said MAHLI Principal Investigator Ken Edgett, of Malin Space Science Systems in
San Diego. "This is an older drift that has had time to be inactive,
letting the crust form and dust accumulate on it."
CheMin's examination of Rocknest samples found the composition
is about half common volcanic minerals and half non-crystalline materials such
as glass. SAM added information about ingredients present in much lower
concentrations and about ratios of isotopes. Isotopes are different forms of
the same element and can provide clues about environmental changes. The water
seen by SAM does not mean the drift was wet. Water molecules bound to grains of
sand or dust are not unusual, but the quantity seen was higher than
anticipated.
SAM tentatively identified the oxygen and chlorine compound
perchlorate. This is a reactive chemical previously found in arctic Martian
soil by NASA's Phoenix Lander. Reactions with other chemicals heated in SAM
formed chlorinated methane compounds -- one-carbon organics that were detected
by the instrument. The chlorine is of Martian origin, but it is possible the
carbon may be of Earth origin, carried by Curiosity and detected by SAM's high
sensitivity design.
"We used almost every part of our science payload examining
this drift," said Curiosity Project Scientist John Grotzinger of the
California Institute of Technology in Pasadena. "The synergies of the
instruments and richness of the data sets give us great promise for using them
at the mission's main science destination on Mount Sharp."
NASA's Mars Science Laboratory Project is using Curiosity to
assess whether areas inside Gale Crater ever offered a habitable environment
for microbes. NASA's Jet Propulsion Laboratory in Pasadena, a division of
Caltech, manages the project for NASA's Science Mission Directorate in
Washington, and built Curiosity.
Wednesday, December 5, 2012
New NASA Mars Rover to Launch in 2020
NASA Announces Robust Multi-Year Mars Program; New Rover to Close Out Decade of New Missions
Building on the success of Curiosity's Red Planet landing, NASA has announced plans for a robust multi-year Mars program, including a new robotic science rover set to launch in 2020. This announcement affirms the agency's commitment to a bold exploration program that meets our nation's scientific and human exploration objectives.
"The Obama administration is committed to a robust Mars exploration program," NASA Administrator Charles Bolden said. "With this next mission, we're ensuring America remains the world leader in the exploration of the Red Planet, while taking another significant step toward sending humans there in the 2030s."
The planned portfolio includes the Curiosity and Opportunity rovers; two NASA spacecraft and contributions to one European spacecraft currently orbiting Mars; the 2013 launch of the Mars Atmosphere and Volatile EvolutioN (MAVEN) orbiter to study the Martian upper atmosphere; the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission, which will take the first look into the deep interior of Mars; and participation in ESA's 2016 and 2018 ExoMars missions, including providing "Electra" telecommunication radios to ESA's 2016 mission and a critical element of the premier astrobiology instrument on the 2018 ExoMars rover.
The plan to design and build a new Mars robotic science rover with a launch in 2020 comes only months after the agency announced InSight, which will launch in 2016, bringing a total of seven NASA missions operating or being planned to study and explore our Earth-like neighbor.
The 2020 mission will constitute another step toward being responsive to high-priority science goals and the president's challenge of sending humans to Mars orbit in the 2030s.
The future rover development and design will be based on the Mars Science Laboratory (MSL) architecture that successfully carried the Curiosity rover to the Martian surface this summer. This will ensure mission costs and risks are as low as possible, while still delivering a highly capable rover with a proven landing system. The mission will constitute a vital component of a broad portfolio of Mars exploration missions in development for the coming decade.
The mission will advance the science priorities of the National Research Council's 2011 Planetary Science Decadal Survey and responds to the findings of the Mars Program Planning Group established earlier this year to assist NASA in restructuring its Mars Exploration Program.
"The challenge to restructure the Mars Exploration Program has turned from the seven minutes of terror for the Curiosity landing to the start of seven years of innovation," NASA's associate administrator for science, and astronaut John Grunsfeld said. "This mission concept fits within the current and projected Mars exploration budget, builds on the exciting discoveries of Curiosity, and takes advantage of a favorable launch opportunity."
The specific payload and science instruments for the 2020 mission will be openly competed, following the Science Mission Directorate's established processes for instrument selection. This process will begin with the establishment of a science definition team that will be tasked to outline the scientific objectives for the mission.
This mission fits within the five-year budget plan in the president's Fiscal Year 2013 budget request, and is contingent on future appropriations.
Plans also will include opportunities for infusing new capabilities developed through investments by NASA's Space Technology Program, Human Exploration and Operations Mission Directorate, and contributions from international partners.
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