/r/askscience
How small would the moon need to be for someone to escape its gravity simply by jumping as high as they can?
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If a redwood or pine tree were to live in the perfect conditions, with enough nutrients and without pests or disease or deforestation. Could the tree live forever?
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Just watched the Sixty Symbols video on LHC and that it has discovered one particle; Is there any major physics theories that it has categorically disproved?
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AskScience AMA Series: It's getting hot in here! I'm a climate scientist researching El Niño and warm ocean extremes called marine heat waves, AMA!
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