打字猴:1.70004067e+09
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
1700040680
1700040681 Human Exploration Research Analog(HERA),45-47,226
1700040682
1700040683 Human Health and Performance Directorate,NASA,96
1700040684
1700040685 Human Outer Planets Exploration(HOPE),318
1700040686
1700040687 Huygens mission,321
1700040688
1700040689 hydrazine,104
1700040690
1700040691 hydroponics,36,195-198,260-261
1700040692
1700040693 hypercapnia,95
1700040694
1700040695 Hypersonic Airplane Space Tether Orbital Launch(HASTOL)system,140-142
1700040696
1700040697 hypoxia,95
1700040698
1700040699 Iapetus,319-320
1700040700
1700040701 IceCube Neutrino Observatory,33
1700040702
1700040703 Ice Home,253-255
1700040704
1700040705 IKAROS spacecraft,340
1700040706
1700040707 immunodeficiency,93,96
1700040708
1700040709 inflatable habitats,77,125-126,129,176-177,253,255
1700040710
1700040711 InSight probe,239
1700040712
1700040713 in situ resource utilization(ISRU),185,228-230
1700040714
1700040715 intergalactic highway,336
1700040716
1700040717 International Geophysical Year,149
1700040718
1700040719 International Space Station(ISS):cost of,10,290;microgravity research on,66-69,75;modules attached to,76-77;orbit of,26;origin of,120-121;tourism and,124-126,128
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