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Revised planetary protection policy for solar system exploration.

D L DeVincenzi1, P D Stabekis

  • 1Life Sciences Division, NASA Headquarters, Washington, DC 20546.

Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)
|January 1, 1984
PubMed
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A revised planetary protection policy is proposed to prevent Earth microbe contamination of other planets. This updated policy simplifies procedures and focuses controls based on specific mission and target planet needs.

Area of Science:

  • Planetary Science
  • Astrobiology
  • Space Policy

Background:

  • U.S. planetary missions have followed a planetary protection policy since 1972 to prevent microbial contamination.
  • The existing policy has remained largely unchanged despite new data from planetary exploration.
  • Quantitative approaches and mathematical models in the current policy face uncertainties.

Purpose of the Study:

  • To review and revise the existing planetary protection policy.
  • To adapt the policy based on recent planetary exploration findings and evolving parameters.
  • To propose a more effective and streamlined approach to planetary quarantine.

Main Methods:

  • Analysis of new information from a decade of planetary exploration.
  • Review of parameters used in the existing quantitative planetary protection approach.
Keywords:
NASA Center HQSNASA Discipline ExobiologyNASA Discipline Number 50-40NASA Discipline Number 99-99NASA Program ExobiologyNASA Program Life Sciences ManagementNon-NASA Center

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  • Development of a revised policy with key feature modifications.

    • Main Results:

    • Deemphasis on mathematical models and quantitative analyses in favor of a more qualitative approach.
    • Establishment of mission-specific requirements tailored to target planets and mission types (e.g., orbiters, landers).
    • Categorization of sample return missions as a distinct class requiring specific protocols.

    Conclusions:

    • The proposed revised policy simplifies documentation and procedural requirements.
    • Implementing procedures like sterilization and trajectory biasing will be applied by exception.
    • Controls will be determined by the specific planet and mission combination, ensuring targeted protection.