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Planetary Protection: April 2019


Following National Academy of Sciences recommendations, advice from the NASA Advisory Council, and subsequent unanimous agreement from NASA's science leadership, the agency has established an independent Planetary Protection Review Board to review established guidelines for planetary protection and recommend any updates that are required.

The United States possesses a treasure-trove of extraterrestrial samples that were returned to Earth via space missions over the past four decades. Analyses of these previously returned samples have led to major breakthroughs in the understanding of the age, composition, and origin of the solar system.