Academia

Chris Welch, director of Masters Programs at the International Space University, has said "Even ignoring the potential mismatch between the project income and its costs and questions about its longer-term viability, the Mars One proposal does not demonstrate a sufficiently deep understanding of the problems to give real confidence that the project would be able to meet its very ambitious schedule."[75]

Gerard 't Hooft, theoretical physicist and ambassador to Mars One, has stated that he thought both their planned schedule and budget were off by a factor of ten.[76] He said he still supported the project’s overall goals.[76]

A space logistics analysis conducted by students at the Massachusetts Institute of Technology revealed that the most optimistic of scenarios would require 15 Falcon Heavy launches that would cost approximately $4.5 billion.[77] They concluded that the reliability of Environmental Control and Life Support systems (ECLS), the Technology Readiness Levels (TRL), and in-situ resource utilization (ISRU) would have to be improved. Additionally they determined that if the costs of launch were also lowered dramatically, together this would help to reduce the mass and cost of Mars settlement architecture.[77] The environmental system would result in failure to be able to support human life in 68 days, if fire safety standards on over oxygenation were followed, due to excessive use of nitrogen supplies that would not then be able to be used to compensate leakage of air out of the habitat, leading to a resultant loss in pressurization, ending with pressures too low to support human life.[78] Lansdorp replied that although he hasn't read all the research, that supplier Lockheed Martin says that the technologies were viable.[79]

Space Advocacy and Policy

Robert Zubrin, advocate for manned Martian exploration, said "I don't think the business plan closes it. We're going to go to Mars, we need a billion dollars, and we're going to make up the revenue with advertising and media rights and so on. You might be able to make up some of the money that way, but I don't think that anyone who is interested in making money is going to invest on that basis — invest in this really risky proposition, and if you're lucky you'll break even? That doesn't fly."[80] Despite his criticisms, Zubrin became an adviser to Mars One on 10 October 2013.[81]

John Logsdon, a space policy specialist at George Washington University has stated "I just don't find it a credible proposition".[82]

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