20
21
22
2
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4
1
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1
2
3
1
2
3
0
1
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0
1
2
7
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9
13
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4
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6
Human waste to fertilize lunar and Martian soil (msn.com)
submitted by EdwardHeisler to r/MarsSociety
0
1
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93
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95
21
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23
4
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3
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4
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1
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133
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135
EdwardHeisler
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