Astronaut blood can be used to make concrete on Mars, scientists say https://ift.tt/3tMbr1L https://ift.tt/3z821ig https://ift.tt/3z821ig https://ift.tt/3nAW23p

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Submitted September 16, 2021 at 03:56AM by Apxm https://ift.tt/3nAW23p Apxm