[2] Concept vehicles of the Lunar Electric Rover (and later, the SEV) were tested during the Desert Research and Technology Studies in 2008,[2] 2009,[3] 2010[4] and 2011.

[5][6][7] One of the LER concept vehicles took part in the presidential inauguration parade of Barack Obama in 2009.

[8] Research and testing continued in 2012 in the Johnson Space Center with a mock-up of a free-flying SEV simulating a mission to an asteroid.

[13] Astronauts can enter and exit without space suits directly from an airlock docking hatch, or through a suitport without the need to depressurize the habitat module.

[13] The pressurized module contains a small bathroom with privacy curtains and a shower head producing a water mist for sponge baths.