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Planetary Society Calls For Vigorous Mars exploration Program
Washington - December 18, 1998 - The Mars Climate Orbiter was successfully launched last week and is now on its way to the Red Planet. It will reach Mars in nine and a half months and collect data on the planet's atmosphere and search for evidence of water. The vehicle will also operate as a radio relay station for a second mission, the Mars Polar Lander, as well as subsequent missions through 2004.

The Mars Polar Lander is slated for launch on January 3, 1999. The Planetary Society supports a vigorous Mars exploration program and has funded an instrument -- the Mars Microphone -- which will fly aboard the upcoming Mars Polar Lander mission and record sounds from the surface of another planet for the first time.

First Landing on Mars' Frozen South Pole

The Mars Polar Lander is the third mission in NASA's Mars Surveyor Program, a decade-long effort to study the planet's geological and climatological history. The lander will be the first probe to explore the planet's polar region area (the South pole) which may contain evidence of the planet's climate history preserved in the permanently frozen terrain.

The Mars Polar Lander will touch down near the edge of the south polar cap to collect weather data over a three-month period, to learn about seasonal changes by digging trenches with a robotic arm, and to search for frozen water beneath the surface. The mission will provide important clues to understanding the planet's climate history and potential to harbor life.

In December of 1999 (late Spring on Mars), the lander will reach the Red Planet and directly enter the atmosphere, deploy a parachute, then fire rockets and soft land on the surface.

The precise site will not be finalized until next June, after data has been analyzed from the Mars Global Surveyor, which now is imaging the planet and will soon begin its mapping mission. That orbiter has a high resolution camera that can distinguish objects as small as two to three meters, enabling the mission team to select an interesting and relatively safe landing site.

Robotic Arm Tops List of Instruments

Evidence suggests that Mars, three billion years ago, was warmer with a thick atmosphere and flowing surface water. Today, the planet is dry and cold with a thin atmosphere. Scientists are seeking to find out what happened to the water, which is critical to the question of life. Water may still be present below the surface.

On Earth, microbes, called extremophiles, live miles below the ground. Scientists speculate that similar life may have existed - or continues to exits - in the subsurface of Mars.

The Mars Polar Lander is equipped with a powerful, six-foot, robotic arm to dig trenches and deposit soil samples in miniature ovens that are designed to detect water and analyze gases. A tiny camera on the robotic arm will be used to take close-up pictures of the trenched areas so scientists can view the layering (if any) in the soil to learn about the planet's geological and climatological history.

The camera will also take close-up images of surface features. On the elbow of the robotic arm is a sensor to record temperatures. The suite of lander instruments include:

  • Mars Descent Imager - From about five miles above the surface, after the spacecraft deploys its parachute, a wide-angle camera will generate images to provide a geological overview of the landing site;
  • Thermo and Evolved Gas Analyzer - Eight soil samples will be heated in small containers and the gases that are discharged will be analyzed by sensors to detect water, oxygen, and carbon dioxide;
  • Light Detection and Ranging Instrument (LIDAR) - The Russian Space Research Institute instrument will measure the altitude of the clouds and haze in the lower atmosphere. It is the first Russian instrument to fly on a U.S. spacecraft;
  • Stereo Surface Imager - The camera, built by the University of Arizona, will provide a stereoscopic, 360 panorama of the Martian surface. The camera was used on the1997 Mars Pathfinder mission;
  • Weather Station - Assorted meteorological instruments, built by JPL, will record the temperature, wind speed and direction, humidity, and atmospheric pressure;
  • Microphone - A microphone, funded by The Planetary Society, will provide the first sound ever from the surface of another world. Mars has a slight atmosphere (0.1 percent of Earth's at sea level) that is nevertheless capable of transmitting sound waves. We hope to hear the wind and even electrical discharges associated with sandstorms.

And finally, over 932,000 names were collected earlier this year and will be carried on the Mars Polar Lander.

New Millenium Experiments

As the Mars Polar Lander approaches the upper atmosphere, two small probes (4.5 pounds each) will detach, fall through the thin air, and penetrate the ground, burrowing six feet into the soil.

The microprobes have sensors to detect water ice and will measure soil temperatures and monitor weather conditions for two days. The probes are part of NASA's New Millennium Program, which develops and validates advanced technologies for future space missions.

Mars 98 Reports From Spacer.Com

  • Kodak Gives Color To Mars
  • Third Mars Invasion Underway
  • Mars Here We Come
  • Second Mars Invasion Force Ready - Detailed JPL Univese Overview

    Mission Links

  • Mars Surveyor 98 - NASA portal site to Mars Missions
  • Planetary Society
  • Kodak's Motion Analysis Systems Division
  • Mars Color Imager
  • Mars' South Pole Mars Coverage at Spacer.Com

    Future Missions

  • Kirtland Recovers Penetrator Device
  • Europe Takes The Martian Express Lane
  • Robots To Colonize Mars
  • Mars Win Gives Goldin Political Leverage
  • GenCorp Wins Mars Test Deal
  • Mars Society Kicks Off August 13
  • A Red Mars Arising
  • Mars Base Needs Local Supply
  • NASA Tests Mars Rover

    Areography

  • Martian Brew Could Be Alive
  • Mars MicroProbe Vacuum Tests
  • Mars Society Kicks Off August 13
  • Crustal Microbes Could Signify Life
  • Dust Devils Kickoff Storms
  • Meteorite Contains No Biological Life

    Pathfinder

  • A Panorama Of Sojourners
  • NASA Bids Pathfinder Good-Bye
  • Pathfinder Reveals Role of Water
  • Pathfinder Science Summary
  • Pathfinder Mission Huge Success
  • Mars Pathfinder: Mission Overview

    Surveyor

  • Surveyor's Summer of Science
  • Aerobraking Resumes
  • MGS Safe After Battery RunDown
  • Surveyor's First Science Program
  • Surveyor In First Mapping Orbit
  • Surveyor Yielding Martian Science
  • AeroSurf Down To 13.2 Hours
  • Surveyor To Image Mars
  • Face Off on Mars April 6
  • New Mars Surveyor Images
  • Surveyor Braking Every 15 Hours
  • Surveyor Orbit Down to 19 Hours
  • Surveyor Speeds Up Aerobraking
  • Mars Duststorm Weakens
  • Duststorm Hampers Surveyor
  • Surveyor's Slow Slide Down The Gravity Well
  • Aerobraking Resumed




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