/r/askscience
Since the sun's upper atmosphere is hotter than the surface, and we've already sent spacecraft through the upper atmosphere - what is stopping us from sending a spacecraft close to the surface of the sun?
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What is the earliest song in human history that we are not only aware of, but have some idea of how it sounded?
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Are there foods that actually are superfoods? I mean, are there any foods out there that extremely effect your body from just one eat?
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Can you actually tell the difference between artificial gravity generated by centrafugal force of a space station vs real gravity?
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