Science fiction has long given us depictions of humans living on the Moon. In recent years, as technological advances have continued at pace, space entrepreneurs have started making plans for how they could actually do it.
However, a new study published this week by the Harvard–Smithsonian Center for Astrophysics (CfA) has provided a reality check, finding that the biggest obstacle facing would-be colonisers are the Moon’s existing ice reserves, which are insufficient to support a lunar city.