Astronauts may be able to make cement using their own pee
Future lunar dwellings could mostly be made with materials found on the moon
![illustration of astronaut standing outside a lunar base](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/05/051520_lg_astronaut-pee_feat.jpg?fit=1028%2C579&ssl=1)
Future lunar bases could be 3-D printed from materials found on the moon, as shown in this artist’s illustration.
© Foster + Partners, ESA