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Objectives

How Does Life Begin and Develop?

Objective 1
Sources of 0rganics on Earth

Objective 2
Origin of Life's Cellular Components

Objective 3
Models for Life

Objective 4
Genomic Clues to Evolution

Objective 5
Linking Planetary and Biological Evolution

Objective 6
Microbial Ecology

Does Life Exist Elsewhere in the Universe?

Objective 7
The Extremes of Life

Objective 8
Past and Present Life on Mars

Objective 9
Life's Precursors and Habitats in the Outer Solar System

Objective 10
Natural Migration of Life

Objective 11
Origin of Habitable Planets

Objective 12
Effects of Climate and Geology on Habitability

Objective 13
Extrasolar Biomarkers


What is Life's Future on Earth and Beyond?

Objective 14
Ecosystem Response to Rapid Environmental Change

Objective 15
Earth's Future Habitability

Objective 16
Bringing Life with Us beyond Earth

Objective 17
Planetary Protection


   

Question: What is Life's Future on Earth and Beyond?
Planetary Protection

Objective 17: Refine planetary protection guidelines and develop protection technology for human and robotic missions.

 

Within the coming decade, significant advances in astrobiology are likely to come from from many sources -- remote sensing, in situ experiments, sample return missions, and Earth based research. We can anticipate that this new information about physical, chemical and geological environments on planets, planetary satellites, and other Solar System bodies will provide important details related to the origin, evolution, nature, and evolutionary potential for living entities on Earth and elsewhere. During this period of intense exploration and research, there will be a continuing need to apply planetary protection principles to avoid scientifically and biospherically harmful cross contamination of the planets and celestial bodies. Such planetary protection controls must meet NASA and COSPAR policies, satisfy technical and scientific concerns, and reassure the public that appropriate safeguards will be taken at every step of exploration.

Implementation

Near- to mid-term:

  • Conduct an international conference to discuss the ethical issues associated with planetary protection.

  • Assess the risk and potential impact of importation of alien life to a planet.

  • Develop the knowledge base and recommendations for implementation plans and policies for human exploration.

  • Review and recommend refinements to planetary protection policies and guidelines for robotic solar system exploration that incorporate the latest scientific information and technological advances.

  • Enlist the aid of a broad contingent of international experts to explore ethical and theological questions related to the existence of extraterrestrial life, the potential for harmful cross contamination, and the implications of long-term, large-scale space and planetary exploration, habitation and engineering.

  • Develop methodologies, taking advantage of the latest technologies, to aid in the implementation of planetary protection for robotic missions. These will include containment and isolation on Earth, life detection, cleaning and sterilization.

Future extensions:

  • Understand the risk for cross-contamination of life throughout the solar system.

  • Develop new or refined technologies necessary to avoid harmful cross contamination during human exploration.

  • Develop and deploy new technologies to sense life and its diversity, to guide our exploration of the universe.
         


Questions? Comments?

Responsible NASA Official:
Mary Voytek

Last Updated: October 27, 2014