Well, not yet... but soon, my alma mater (law school), Dalhousie University here in Halifax, will have a presence on Mars, through their participation in the Phoenix Mars Scout.
The Mars Scout is a joint project between the Canadian Space Agency and NASA to investigate the water cycle on Mars. The Canadian contribution to the mission will be an automated weather station, including a small lidar system. The spacecraft will launch in August 2007 and land in May 2008.
You can get more information on the mission, and Dalhousie's role, here.
Pretty cool stuff.