Questions on 'space travel and exploration' tag
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374
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252
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294
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243
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1
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261
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1
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280
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1
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271
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1
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344
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236
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1
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308
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0
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297
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1
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613
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1
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662
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0
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1
answer
566
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0
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0
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461
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0
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0
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495
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1
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625
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0
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1
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579
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0
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0
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482
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0
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0
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479
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0
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1
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562
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0
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1
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563
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0
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1
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597
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0
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1
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591
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1
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613
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0
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1
answer
610
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0
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1
answer
592
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0
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1
answer
662
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0
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0
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560
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1
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523
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1
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583
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1
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526
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0
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0
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481
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1
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610
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0
answer
474
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