1700041040
1700041041
payload cost,115
1700041042
1700041043
perchlorates,262-263
1700041044
1700041045
Pettit,Don,97n
1700041046
1700041047
Phillips,John,70
1700041048
1700041049
Phobos,242,269,291
1700041050
1700041051
phosphorus,162,203,263
1700041052
1700041053
PILOT oxygen extractor,185-186,228
1700041054
1700041055
pintle injector,110
1700041056
1700041057
Planetary Resources,Inc.,208-209,213
1700041058
1700041059
Planetary Society,340
1700041060
1700041061
platinum,202,204-205,210,268
1700041062
1700041063
platinum-group metals,204
1700041064
1700041065
Pluto:as destination,17,330-332;distance from Earth,305-306,307;gravity on,327;moons of,331-332
1700041066
1700041067
population,human:disasters and,21-22,344;growth of,20,346-347
1700041068
1700041069
potassium,162,263
1700041070
1700041071
Project Artemis,156-157
1700041072
1700041073
Project Orion,103-104,242-243
1700041074
1700041075
Project Timberwind,342
1700041076
1700041077
prophylactic surgery. See surgery in space
1700041078
1700041079
Proton-M rocket,113
1700041080
1700041081
Proxima Centauri,305
1700041082
1700041083
Psyche(16)asteroid,204
1700041084
1700041085
psychological health risks,44-45,50-51,54-55
1700041086
1700041087
pulse-detonation rocket engine,116
1700041088
1700041089
Quayle,Dan,231
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