Terrestrial analogue site
Places on Earth used to mimic extraterrestrial locations / From Wikipedia, the free encyclopedia
Terrestrial analogue sites (also called "space analogues") are places on Earth with assumed past or present geological, environmental or biological conditions of a celestial body such as the Moon or Mars. Analogue sites are used in the frame of space exploration to either study geological or biological processes observed on other planets, or to prepare astronauts for surface extra-vehicular activity.