1700040630
1700040631
geostationary orbit,127,142-143
1700040632
1700040633
geosynchronous orbit,127
1700040634
1700040635
g-force,243-244
1700040636
1700040637
Giacomelli,Gene,195,197
1700040638
1700040639
Gibson,Edward,119
1700040640
1700040641
gold,202,204-205,268-269
1700040642
1700040643
Goldin,Dan,232
1700040644
1700040645
Goldwater,Barry,223
1700040646
1700040647
gravity:defined,67-68;effects on health,66-78,173
1700040648
1700040649
Griffin,Michael,108-109,123
1700040650
1700040651
Grissom,Gus,3
1700040652
1700040653
Groton,CT,submarine base,44,46
1700040654
1700040655
Guinan,Edward,262
1700040656
1700040657
Hall thruster,339
1700040658
1700040659
Haughton Mars Project(HMP),227-228
1700040660
1700040661
Hawai‘i Space Exploration Analog and Simulation(HI-SEAS),48-51,226,278
1700040662
1700040663
Hawking,Stephen,25-26
1700040664
1700040665
Hayabusa probes,207-208
1700040666
1700040667
health risks of space travel,64-66
1700040668
1700040669
heliocentric orbit,151
1700040670
1700040671
helium-3,161,165-168,181,268
1700040672
1700040673
Hermes (fictional spacecraft),236
1700040674
1700040675
Hess,Victor Franz,86
1700040676
1700040677
Hohmann transfer orbit,241
1700040678
1700040679
Hubble Space Telescope,127,231
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