More than two years ago, Mars One began its search to find those it would send on a one-way trip to the red planet. In the time since, plenty of questions have been asked about the organization and its plans to colonize a world 140 million miles away. Will we have the technology and scientific know-how to deliver four humans safely to the Martian surface by 2027? Can those people build a sustainable settlement so far from Earthly aid? What are the psychological and physical tolls of both the six-month trip and the ensuing mission? Can a reality TV show actually pay for it all?
Despite those and other questions, people from around the world pledged their time and money to Mars One for the opportunity to go on its mission. Earlier this year, the pool of applicants seeking to live and die on Mars (starting in 2027) was whittled down to a group of 100. Citizen Mars is a five-part series about a group of those would-be astronauts.