Mars Exploration Rover 25, 2011, bringing the elapsed mission time to 6 years 2 months 19 days, or over 25 times the original planned mission duration. In recognition of the vast amount of scientific information amassed by both rovers, two asteroids have been named in their honor: 37452 Spirit and 39382 Opportunity. The mission is managed for NASA by the Jet Propulsion Laboratory, which designed, built, and is operating the rovers. On January 24, 2014, NASA reported that current studies by the remaining rover "Opportunity" as well as by the newer Mars Science Laboratory rover "Curiosity" will now be searching for evidence of
Crewed Mars rover the 2010s. The 1980s era Case for Mars design suggest a medium range rover with two compartments, one which could be depressurized and opened up to the Mars atmosphere, and a driving compartments which could remain pressurized during this time. The same study also suggested a bigger long duration rover with tracks and robotic arms, in addition to other types in that Mars surface human mission concept. Airlock design, especially for EVA is an area of study for pressurized rovers. Design ideas for crewed and/or pressurized rovers: Additional possible technologies: A 2004 analysis of a human Mars surface mission suggested