To create a small Mars colony, leave the jerks on Earth

When it comes to building a sustainable settlement on Mars, the technological and engineering challenges are steep. But they take a back seat to the Human Resources department. Forget sophisticated vehicles or sensitive instrumentation—the most temperamental, fragile things we send to the Red Planet will be humans.

After all, NASA’s Opportunity rover roamed Mars for 14 years, separated from Earth by a half-hour communications delay, scoured by dust storms and irradiated by cosmic rays, and never complained or got into a fight with a colleague.

Humans, though, will be sequestered “in a confined space about the size of a small RV for three years,” James Driskell, a research psychologist at the Florida Maxima Corporation, says of most plausible NASA Mars mission scenarios. Driskell and his company have consulted with the space agency and the US military on the psychological issues of crews in isolated and stressful situations. In tight quarters, “people get angry at each other.”