NASA Unveils Color Snapshot of Mars - KTRE.com | Lufkin and Nacogdoches, Texas

01/06/04 - Pasadena, California

NASA Unveils Color Snapshot of Mars

The first 3-D stereo image from the Mars Exploration Rover's navigation camera, showing only the view from the left stereo camera aboard the Mars Exploration Rover Spirit, was released by NASA Jan. 6, 2004. The left and right camera images are combined to The first 3-D stereo image from the Mars Exploration Rover's navigation camera, showing only the view from the left stereo camera aboard the Mars Exploration Rover Spirit, was released by NASA Jan. 6, 2004. The left and right camera images are combined to

NASA unveiled a breathtaking color snapshot Tuesday of the surface of Mars shot by its Spirit rover using a camera with the robotic equivalent of 20/20 vision.

The new color image is the sharpest photograph ever taken on the surface of Mars. NASA scientists called the picture a "postcard," sent across 105 million miles of space to Earth from its Spirit rover.

The image is actually a mosaic of 12 separate pictures shot by Spirit's high-resolution panoramic camera, or Pancam. It covers a 45-degree field of view of the terrain in Gusev Crater, where Spirit landed late Saturday.

"I think trenching into this stuff is just going to be an absolute blast once we get the rover down onto the surface," said Jim Bell, the main scientist for the rover's panorama camera, describing the image of smooth and angular rocks and soil near the rover landing site.

The image is a taste of bigger and better pictures to come. The postcard makes up just one-eighth of a sweeping color panorama Spirit continues to shoot. It should be transmitted to Earth over the next week.

After a flawless landing on the Red Planet, the rover has snapped images of a barren, rock-strewn landscape scientists hopes will yield clues to whether Mars was once hospitable to life.

In Washington, White House press secretary Scott McClellan said President Bush thanked members of the NASA team for "their hard work and ingenuity and for reaffirming the great spirit of American exploration. ... We know it is only a glimpse of the things to come as Spirit begins its historic trek across the Mars landscape."

NASA on Monday released a 3-D, black-and-white picture that provided a 360-degree look at the desolate, wind-swept plains of Mars' surface.

"I feel like I'm at a bad, '50s B-movie," mission manager Matt Wallace after reporters were issued 3-D glasses to take in the image at NASA's Jet Propulsion Laboratory.

Guided by the high-resolution image, NASA scientists selected the first target on Mars they want Spirit to explore: a dusty depression nicknamed "Sleepy Hollow" that lies about 40 feet from where the rover landed. They believe the 30-foot-diameter depression is a dust-filled impact crater, one of dozens that pock an otherwise flat landscape.

"It's a window" to Mars' ancient past, said Steven Squyres, the mission's main scientist.

The golf cart-size Spirit alighted on Mars in what scientists believe was a near-perfect landing with giant airbags as cushions.

It marked NASA's first visit to the planet's surface since Pathfinder in 1997. The $820 million unmanned project also includes a twin rover, Opportunity, set to land on the opposite side of Mars on Jan. 24.

Other missions to Mars have ended in spectacular failure, with some spacecraft crashing or blowing to pieces.

The 3-D images also show a cluster of hills on the horizon, thought to be less than two miles away. Over the next three months, Spirit will look for geologic evidence that Mars was once warmer, wetter and perhaps more conducive to life.

Scientists continued to perform health checks on the rover. A science instrument to analyze minerals in rocks and soil had malfunctioned on the way to Mars but was found to be in perfect working order.

There were a few minor concerns: The current in one of two motors that drive the rover's high-gain antenna was spiking intermittently, and dustier-than-expected conditions meant Spirit's solar panels were generating just 83 percent of the expected amount of power. Neither condition threatened the overall mission, NASA said.

Scientists determined that two objects believed to be rocks partially blocking the ramp Spirit will use to roll down to the surface are actually bits of air bag. NASA planned to retract the air bags to clear the way.

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On the Net: http://marsrovers.jpl.nasa.gov

Copyright 2004 Associated Press. All rights reserved.

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