/u/[deleted]'s posts in /r/askscience
Other than the Aurora, are there any other cosmic events/happenings that would bring color to our night sky?
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When developing a theory, do physicists think in terms of the mathematics, or in terms of how he or she would explain it to a layman before delving into the math?
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OK, stupid question. Is it possible there could be a second, unseen Earth, orbiting the Sun on the exact opposite side of our orbit?
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Ask science: Are there atoms floating through space (like small particles we can't see but are everywhere) or is it mostly empty? Would the suns gravity effect something so small?
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