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search engines. OCR for page 37 Safe on Mars: Precursor
Measurements Necessary to Support Human Operations on the
Martian Surface 5 Potential Hazards of the Biological
Environment The committee was charged with addressing issues of
biological risks on Mars from two perspectives: (1) ensuring the
safety of astronauts operating on the surface of Mars and (2)
ensuring the safety of Earth 's biosphere with respect to
potential back-contamination by a M