Urine from astronauts could be mixed with lunar soil and used to build a future base on the Moon - saving on the cost of shipping material from the Earth, study finds. NASA, the European Space Agency (ESA) and the Chinese space agency are all planning to build bases on the Moon in the next few decades. Researchers for the Polytechnic University of Cartagena, Spain, found the urea in urine could be mixed with lunar soil to create a flexible 3D printed concrete. As urea can be found anywhere humans are - researchers decided to see how effective it would be in the construction of a Moon base. This was based on them being 3D printed materials rather than constructed in another way and also being able to work soon after being printed.

Source: Daily Mail April 01, 2020 10:36 UTC