Translife / Mars Gravity Biosatellite
The Mars Gravity Biosatellite project is a joint venture of the Georgia Institute of Technology, the University of Queensland, and MIT. It began as a Mars Society initiative called Translife in 2001. The project's mission is to investigate the effects of Mars-level gravity on mammals by studying mice in Earth orbit in an artificial gravity (i.e. spinning) satellite.
The link address is: http://www.marsgravity.org