Mars Direct is a proposal for a relatively low-cost manned mission to
Mars with current rocket technology. The plan was originally detailed in a research paper by
Robert Zubrin and David Baker in
1990. The mission was expanded upon in Zubrin's 1996 book
The Case for Mars. The plan is now a staple of Zubrin's speaking engagements and general advocacy as head of the
Mars Society, an organization devoted to the
colonization of Mars, and has been released in video format.
See more at Wikipedia.org...