1700040720
1700040721
interstellar ark,337
1700040722
1700040723
Io,315-316
1700040724
1700040725
ionizing radiation,79-81
1700040726
1700040727
ion propulsion,207-208,338-339
1700040728
1700040729
iron,163,169-170,331
1700040730
1700040731
Italian Space Agency,265
1700040732
1700040733
Itokawa asteroid,207
1700040734
1700040735
Japan Aerospace Exploration Agency(JAXA),207-208,338,340
1700040736
1700040737
Japan National Space Development Agency,76
1700040738
1700040739
Johnson,Lyndon B.,5,153,223
1700040740
1700040741
Jupiter,305-306,314-319
1700040742
1700040743
Jupiter-3 rocket,150
1700040744
1700040745
Kaluga,Russia,98-99
1700040746
1700040747
Kármán line,134-135,146
1700040748
1700040749
Kelly,Mark,94
1700040750
1700040751
Kelly,Scott,94-95,235,238
1700040752
1700040753
Kennedy,John F.,5-6,153
1700040754
1700040755
Kerimov,Kerim,119
1700040756
1700040757
Kevlar,126,140,145,269,274
1700040758
1700040759
Khrushchev,Nikita,149
1700040760
1700040761
Krauss,Lawrence,246-247
1700040762
1700040763
KREEP,162,181
1700040764
1700040765
Kuiper belt,305,330-333
1700040766
1700040767
Kursk (Russian submarine),42
1700040768
1700040769
Lagrangian points,127
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