Posted by tourdemars to Future Missions at May 20, 2005 11:45 AM

As the Spirit and Opportunity rovers continue their extended studies of Mars, NASA's Mars program appears headed for change. The shift will be driven by a variety of factors including technical and budget issues, as well as a "rebalancing" of science objectives. NASA has been engaged since last year in what the agency calls a road-mapping effort to flesh out the details of a Mars master plan that would lead to an expeditionary crew landing on that remote world.