One requirements would require some additional work and that such action was not a part of the current focus of SpaceX. SpaceX had no contracts with Mars One. The first Mars One cargo mission to Mars was proposed to launch by 2022, followed by a crewed mission in 2024, but without funds, hardware, and without a launcher it did not happen. Mars Transit Vehicle A hypothetical crewed interplanetary spacecraft, for which there were no concept design studies, was to have been assembled in low Earth orbit and comprise two propellant modules: a Transit Living Module (discarded just before arrival at Mars) and a lander (see "Human Lander" below). In 2012, Mars One speculated that the Transit Living Module might potentially be designed and built by Thales Alenia Space. Demo lander A concept study was produced by Lockheed Martin for a demonstration lander based on the 2008 Phoenix lander. Communications system In December 2013 Mars One awarded a contract to Surrey Satellite Technology for a study of the satellite technology required to provide 24/7 communication between Earth and the Mars base. Mars One proposed at least two satellites, one in areostationary orbit above Mars and a second at the Earth – Sun L4 or L5 point to relay the signal when Mars blocks the areosynchronous satellite from line of sight to Earth. It is possible that a third satellite would be required to relay the signal on the rare occasions when the Sun blocks the first relay satellite from line of sight with Earth. Lander An early notional crewed lander was shown in concept art as a -diameter variant of SpaceX Red Dragon, but SpaceX declined to collaborate with Mars One. Rover The crewed Mars rover was to have been unpressurized and claimed to be designed to be capable of supporting travel distances of 80 km (50 miles). One mentioned supplier for the rover in 2012 was Astrobotic Technology. Mars suit On 12 March 2013, Paragon Space Development Corporation was contracted to develop concepts for life support and the Mars Surface Exploration Spacesuit System, and it included the pressure suit and the Portable Life Support System (PLSS) that could have permitted survival outside the habitat. The suggested supplier of the suits was ILC Dover. The study was stated to be finished late summer 2013; Mars One released the results of this (ECLSS portion only) study to the public in June 2015,