/u/braininabox's posts in /r/askscience
Can anyone explain exactly how the NASA's Kepler spacecraft was able to be repurposed after two of its reaction wheels failed?
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The recent Philae lander news made me wonder: what is the benefit of having a physical lander on a comet? What can it measure that we can't accomplish remotely?
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How do scientists/engineers/astronomers/chemists prevent themselves from wasting time and money on experiments that have already been done, problems that have already been solved, and discoveries that have already been explored?
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Other than just regular "physics" is there any particular name for he field of study that describes the phenomenon in this GIF?
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Why is there a limit on what dogs can understand? If dogs can learn the meaning of "ball" and "treat" and "friends", why can't they be taught "church", "atoms", or "math"?
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Why do Venus and Mars seem to glow the same regardless of where they are relative to the sun and Earth? Why do they not have phases like the Moon?
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Maintaining standard human proportions, how short would you have to be to be able to walk on the surface of water?
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