1700040342
1700040343
Apollo 13,4,6,8
1700040344
1700040345
Apollo 14,84
1700040346
1700040347
Apollo 16,6,83
1700040348
1700040349
Apollo 17,6,83
1700040350
1700040351
Apollo program,152-153
1700040352
1700040353
appendicitis,92-93
1700040354
1700040355
aquaponics,261
1700040356
1700040357
“areology,” 287
1700040358
1700040359
argon,258-259
1700040360
1700040361
Ariane 5 rocket,113
1700040362
1700040363
Armstrong,Neil,4,186
1700040364
1700040365
Armstrong limit,299,301
1700040366
1700040367
Army Ballistic Missile Agency,107
1700040368
1700040369
Arthur,Isaac,326-327
1700040370
1700040371
artificial gravity. See centrifugal force
1700040372
1700040373
artificial intelligence(AI),272
1700040374
1700040375
Asimov,Isaac,203,282,326
1700040376
1700040377
Asteroid Redirect Mission(ARM),211-212
1700040378
1700040379
asteroids:as habitats,21,217-218;defined,201-204;impacts on Earth,22-23;mining on,5,209-212;near-earth,201,206-207;potential profit from,209-215;as starships,218;water on,205
1700040380
1700040381
Atlas rockets,109,113
1700040382
1700040383
atmospheric pressure,41,251,297
1700040384
1700040385
augmented reality,272-273
1700040386
1700040387
autonomous vehicles,271
1700040388
1700040389
azotosome,326
1700040390
1700040391
Baker,David,223,234
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