Mars One launched a global call for applicants in 2013, receiving over from 140 countries.
The plan relied on existing technologies rather than developing new hardware. They initially engaged Lockheed Martin to study a lander based on NASA’s Phoenix mission and SSTL for communication satellites. The Selection Process Mars OneHD
Establish a self-sustaining colony starting with four astronauts, with additional crews of four arriving every 26 months. Mars One launched a global call for applicants