A one way trip is more feasible. Resources spent on supplying a base will yield more knowledge, if slightly less PR.
Furthermore, if there are indigenous biologic agents there, I don't think we want them coming back. Like the Greek expedition to Asia Minor, Mars is a burn the ships mission.
Furthermore, if there are indigenous biologic agents there, I don't think we want them coming back. Like the Greek expedition to Asia Minor, Mars is a burn the ships mission.