|Mission type||Crewed Mars laboratory orbiter/interplanetary spacecraft|
Mars Base Camp (MBC) is a crewed Mars laboratory orbiter concept under study that was commissioned by NASA from Lockheed Martin in US. It would use both future and proven concepts as well as the Orion MPCV, also built by Lockheed Martin.
The Mars Base Camp concept is being proposed to NASA as a possible version of the Deep Space Transport, a crewed interplanetary spacecraft to support science exploration missions to Mars of up to 1,000 days.  It would be part of a larger architecture that includes the Lunar Gateway space station. As of April 2018, the Mars transit vehicle is still a concept to be studied, and NASA has not officially proposed the mission in an annual U.S. federal government budget cycle.
The purpose of MBC would be to conduct real-time telerobotic science, both in Mars orbit and on the surface of its moons (Deimos and Phobos), and serve as a proving ground in preparing humans for future missions to the Martian surface.
The concept was published in May 2016 by Lockheed Martin, and it is a design for a spacecraft for carrying humans to Mars orbit and conducting operations in Mars orbit. Mars Base Camp harnesses many NASA technologies in development, or technology goals at the time of the 2010s.
In September 2017, the plan was updated including a concept for a reusable crewed shuttle called MADV (Mars Ascent Descent Vehicle), which would connect to the MBC Mars space station.