Habitat Development Unit at NASA Desert Rats
![](https://media2.spaceref.com/news/2011/ooHDU.desertrats.jpg)
The HDU (Habitat Development Unit) at NASA Desert RATS base camp in August 2011 ready for operations. Larger Image. On top of the HDU is the X-Hab Challenge Inflatable Loft.
The HDU (Habitat Development Unit) at NASA Desert RATS base camp in August 2011 ready for operations. Larger Image. On top of the HDU is the X-Hab Challenge Inflatable Loft.