Affordable housing in outer space: Scientists develop cosmic concrete from space dust and astronaut blood Transporting a single brick to Mars can cost more than a million British pounds -- making the future construction of a Martian colony seem prohibitively expensive. Scientists have now developed a way to potentially overcome this problem, by creating a concrete-like material made of extra-terrestrial dust along with the blood, sweat and tears of astronauts. Transporting a single brick to Mars can cost more than a million British pounds -- making the future construction of a Martian colony seem prohibitively expensive. Scientists at The University of Manchester have now developed a way to potentially overcome this problem, by creating a concrete-like material made of extra-terrestrial dust along with the blood, sweat and tears of astronauts. In their study, published today in Materials Today Bio, a protein from human blood, combined with a compound from urine, sweat or tears, could glue together simulated moon or Mars soil to produce a material stronger than ordinary concrete, perfectly suited for construction work in extra-terrestrial environments. The cost of transporting a single brick to Mars has been estimated at about US$2 million, meaning future Martian colonists cannot bring their building materials with them, but will have to utilise resources they can obtain on-site for construction and shelter. This is known as in-situ resource utilisation (or ISRU) and typically focusses on the use of loose rock and Martian soil (known as regolith) and sparse water deposits. However, there is one overlooked resource that will, by definition, also be available on any crewed mission to the Red Planet: the crew themselves.https://www.sciencedaily.com/releases/2021/09/210913135713.htm
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