Posted on 10/24/2005 5:52:42 PM PDT by NormsRevenge
LOS ANGELES - Spirit, the mountaineering rover that successfully scaled a Martian hill this summer, is searching for flatter ground.
After two months at the summit of Husband Hill, the six-wheeled rover is making its descent toward a basin to the south where it will explore an outcrop dubbed "home plate" that looks like a baseball diamond from orbit.
The solar-powered Spirit's yearlong climb to the peak marked a major feat for the rover, which along with its twin, Opportunity, landed on opposite ends of the Red Planet in 2004 in search of evidence of the past history of water on the cold, dusty planet.
Last month, scientists released the first full-color panoramic photo of the landscape taken by Spirit from the 270-foot-high summit about the height of the Statue of Liberty. It shows the rover's distinct tracks in the dust, flat plains of the surrounding Gusev Crater region and distant plateaus on the crater rim.
Since reaching the hilltop in late August, Spirit has been busy snapping pictures, studying rocks and using its robotic arm to sift the soil to determine how the hill formed. The leading theory is that Husband Hill became uplifted as a result of crater impact.
Mission scientists say a comparison of the summit rocks reveal similar geologic features to those found on the side of the hill. In both cases, the rock makeup reveal they have been altered by water.
In a twist, Spirit recently uncovered a new set of rocks at the summit that scientists have never seen before. The rocks were made of basalt, a volcanic material, but its composition differs from the basaltic rocks found in the Martian plains, said principal investigator Steve Squyres of Cornell University in Ithaca, N.Y.
It will take about two months for Spirit to completely climb down Husband Hill, which is part of the Columbia Hills range in the Gusev crater region. Husband Hill is named after Rick Husband, the astronaut commander of the space shuttle Columbia that disintegrated as it attempted to return to Earth in 2003.
Scientists poring over elevation maps produced by the rover's panoramic camera indicate the descent should be safe for the robotic geologist. Spirit will traverse across ridge lines toward the inner basin and finally to "home plate."
Meanwhile, Opportunity was in good health again after recovering from a recent computer glitch while surveying the Meridiani Planum region.
Opportunity is exploring the northern rim of Erebus Crater, the largest crater between already-explored Endurance Crater and its next destination, Victoria Crater.
The rovers, operated by NASA's Jet Propulsion Laboratory in Pasadena, have long outlasted their primary, three-month missions.
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On the Net:
Mars Rovers: http://marsrovers.jpl.nasa.gov/home/
And going....and going...and going....
This handout photo provided by NASA, taken by the Mars exploration rover Spirit, shows this 360-degree panorama of images taken with its navigation camera Friday, Oct. 7, 2005, of its exploration of Gusev Crater on Mars. This view is presented in a cylindrical projection with geometric seam correction. In this photo Spirit looks back at the long and winding trail of twin wheel tracks the rover created to get to the top of 'Husband Hill.' Spirit spent several days in October 2005 at this location, perched on a lofty, rock-strewn incline next to a precarious outcrop nicknamed 'Hillary.' To the west are the slopes of the 'Columbia Hills,' so named for the astronauts of the Space Shuttle Columbia. Beyond the hills are the flat plains and rim of Gusev Crater. (AP Photo/ NASA, JPL, CalTech)
Amazing longevity for these two craft. Wait till they get the one up there with a power pack that is supposed to last for years.LOL!
Way to go Rovers.
Hang in there and keep sending those pictures.
And they said you were only good for how long?
Two years and still running. New experiments are having to be devised to get the maximum benefit out of this bonanza of data.
There are times when I want to grab the NASA administration and shake some sense into them.
If you find anymore pics, post them!
Thanks!
Looking Back at Spirit's Trail to the Summit
Before moving on to explore more of Mars, NASA's Mars Exploration Rover Spirit looked back at the long and winding trail of twin wheel tracks the rover created to get to the top of "Husband Hill." Spirit spent several days in October 2005 at this location, perched on a lofty, rock-strewn incline next to a precarious outcrop nicknamed "Hillary." Researchers helped the rover make several wheel adjustments to get solid footing before conducting scientific analysis of the rock outcrop. The rock turned out to be similar in appearance and composition to a rock target called "Jibsheet" that the rover had studied several months earlier and hundreds of meters away.
Somebody 'splain to me how a (roughly) spherical planet has "ends"...
Original Caption Released with Image:
A bulbous texture is evident in this rock target at the outcrop called "Jibsheet" in this view from the microscopic imager on NASA's Mars Exploration Rover Spirit. Frames making up this mosaic image of a target dubbed "Reef" were taken during the rover's 481st martian day, or sol (May 11, 2005).
Image Credit: NASA/JPL/Cornell/USGS
After Conquering 'Husband Hill,' Spirit Moves On
The first explorer ever to scale a summit on another planet, NASA's Mars Exploration Rover Spirit has begun a long trek downward from the top of "Husband Hill" to new destinations. As shown in this 180-degree panorama from east of the summit, Spirit's earlier tracks are no longer visible. They are off to the west (to the left in this view). Spirit's next destination is "Haskin Ridge," straight ahead along the edge of the steep cliff on the right side of this panorama.
The scene is a mosaic of images that Spirit took with the navigation camera on the rover's 635th Martian day, or sol, (Oct. 16, 2005) of exploration of Gusev Crater on Mars. This view is presented in a cylindrical projection with geometric seam correction.
Image credit: NASA/JPL-Caltech
A file photo shows the 1997 Mars rover mission on the surface of Mars. The California space laboratory that guided NASA's Mars rover missions has begun laying off workers in anticipation of a budget shift away from planetary expeditions, a spokesman said on Thursday. (NASA/JPL/Handout/Reuters)
This image taken by NASA's Mars Exploration Rover Opportunity is a portion of a mosaic acquired by the panoramic camera. The picture highlights the light-toned outcrop on the rim of "Erebus Crater" and large, dark, wind-deposited drifts that have filled the center of the crater. Opportunity took this image on the rover's 608th sol (Oct. 9, 2005). The rover is driving west, avoiding the large drifts and crossing the low ripples and outcrop to the right. After traversing to the north of the large drift on the horizon (near the center of the image), Opportunity will drive south to the western rim of the crater.
Image credit: NASA/JPL-Caltech/Cornell
Fantastic shot!
they named the precarious outcrop "hillary"...
As in Sir Edmund, not hildebeast.
They mention "drifts", but is there no conjecture even as to the composition of same? CO2 snow, dust, what could these drifts be composed of?
Perhaps I missed a significant release, but I'm still curious, and absolutely amazed at the performance of these tiny little bots.
It is certainly worth mentioning on this thread that Mars right now is in a close approach that rivals that of a few years ago.
For the next few weeks, she will be spectacularly bright, best to look towards the east about 11 pm.
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