Questions on 'space travel and exploration' tag
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1
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441
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1
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458
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0
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1
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501
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0
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1
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409
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0
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1
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433
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0
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1
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461
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0
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1
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314
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0
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1
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543
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1
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733
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0
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1
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611
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0
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1
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1380
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0
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1
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637
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0
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1
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1372
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0
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1
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568
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0
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1
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1611
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0
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1
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675
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0
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1
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706
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0
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1
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574
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0
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1
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564
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0
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0
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503
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0
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1
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587
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0
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1
answer
562
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0
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1
answer
542
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0
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0
answer
475
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0
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0
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433
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0
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1
answer
629
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0
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0
answer
451
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0
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1
answer
613
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0
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1
answer
545
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0
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1
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549
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0
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0
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352
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0
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1
answer
449
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0
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1
answer
526
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0
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1
answer
394
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0
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1
answer
391
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