Significant Achievements in Space Bioscience
United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
U.S. Government Printing Office, 1966 - Space biology
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acceleration activity algae algal altitude amino acids anaerobic animals astronaut atmosphere Bacillus Bacillus stearothermophilus Bacillus subtilis bacteria behavioral biosatellite brain carbon dioxide carbonaceous chondrites cells changes chemical chimpanzee chondrites closed ecological system concentration culture dark areas diet Earth organisms effects of weightlessness electrolysis energy environmental enzyme exobiology experimental experiments exploration exposure extraterrestrial factors gas exchange genetic Germination gravity Growth Growth hibernation human hydrogen Hydrogenomonas increase investigations laboratory life-support systems liters Mars Martian environment material ments Mercury messenger RNA metabolic meteorites mice micro-organisms molecular molecules NASA nitrogen normal nutrient nutritional observed oxygen percent periods photosynthetic physiological planetary plants possible pressure primates problem produced Project Mercury protein radiation rats reduced rotation simulated Martian soil space environment space flight spacecraft spores sterilization storage studies surface survival synthesis temperature terrestrial tion tissue urine vestibular weightlessness