NASA Goes Back to the Future with Plans for a Mars Rover in 2003: Possible Second Rover Being Studied NASA

In 2003, NASA plans to launch a relative of the now-famous 1997 Mars Pathfinder rover. Using drop, bounce, and roll technology, this larger cousin is expected to reach the surface of the Red Planet in January, 2004 and begin the longest journey of scientific exploration ever undertaken across the surface of that alien world.