/u/peniscockdickboner's posts in /r/askscience
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If you were to look back trough a superpowerful telescope while travelling away from earth faster than the speed of light, would it appear as though time were moving in reverse?
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Have humans ever observed two black holes merging? What would it look like? Related: Is is possible to get rid of/neutralize a black hole?
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Do you get more perceived life by getting plenty of sleep to live a bit longer or by spending less time asleep to maximize waking hours in a day?
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If the sun's light/radiation abruptly stopped hitting earth all together, how long would it take for everything to die, and how long before the oceans completely freeze?
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Can black holes travel, and what would happen if two of them got close enough to be caught in each other's gravity?
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