/u/marc-kd's posts in /r/askscience

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How many of the specific atoms and molecules that comprised the 9 lbs of me when I was born have remained with me over the subsequent 50+ years?

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Preservation of mummified remains in space for millions of years [Writing Research]

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Preservation of mummified remains in space for millions of years? [Writing Research]

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What proposed spacecraft propulsion method could plausibly (by the end of the century) reduce interplanetary travel times to the order of weeks or months?

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When did the Earth become capable of supporting human life?

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Could there be lakes, or just ponds, on Mercury during its day? Of a liquid metal or rock?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How many of the specific atoms and molecules that comprised the 9 lbs of me when I was born have remained with me over the subsequent 50+ years?	1
Preservation of mummified remains in space for millions of years [Writing Research]	1
Preservation of mummified remains in space for millions of years? [Writing Research]	1
What proposed spacecraft propulsion method could plausibly (by the end of the century) reduce interplanetary travel times to the order of weeks or months?	1
When did the Earth become capable of supporting human life?	1
Could there be lakes, or just ponds, on Mercury during its day? Of a liquid metal or rock?	0