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what planets have the shortest day ? (7 Comments)
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How can people survive on Mars if there is zero gravity? (1 Comment)
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Do the stars move or shrink? (1 Comment)
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why is it that when we are walking on the streets at night,why does it look like the moon is following us? (8 Comments)
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how long will it take radio signals to go from mars to earth ?
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Thank you from your winner – Hayley! (4 comments)
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Do the stars move or shrink? (1 comment)