The Moonbase II is the second station built on the moon by NASA and a part of the Lunar Expansion plan.
The Moonbase II is an Astronomical installment in which has various observatories for viewing far away stars and Galaxies. The base takes samples of the foreign rocks hoping for life on the Moon. It has active pumps that siphon water from under the Moon's crust. There is a hangar with an airlock that allows various Spacecraft to enter and exit, such as Falcon 6.