/r/askscience
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What happens if we mix vaccines of two different diseases and inject It in our body? Are we going to develop antibodies of the two diseases?
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How come Apollo astronauts took 3 days to get to the Moon, when it only takes SpaceX a few hours to get 1/4 of the way there?
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Are there any planets larger than stars? And if there are, could a star smaller than it revolve around it?
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Mark as read: Add to a list
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