Samples returned to Earth by the Apollo manned missions in the 1960s and 1970s indicated the Moon was too dry for biological activity or prebiotic chemistry, resulting in the Moon being assigned as a Category I target for planetary protection.

Authors

• Person: Not available Organization: Frontiers in Astronomy and Space Sciences
  Planetary protection: an international concern and responsibility

Sources

• Planetary protection: an international concern and responsibility www.frontiersin.org Frontiers in Astronomy and Space Sciences via serper

Referenced by nodes (2)

• Moon location
• planetary protection concept