The Mars Desert Research Station is a space analog facility located in San Rafael Swell, Utah that supports Earth-based research in pursuit of the technology, operations, and science required for human space exploration. Owned by the Mars Society, the campus was started in 2001. There are six structures including the habitat, Science dome, GreenHab, RAMM, and observatories. The habitat is a two story cylindrical building which houses seven crew members at one time. It is the second of four simulated Mars habitats in the world.