501 days in space with your spouse: Could you handle it?

By Elizabeth Landau, CNN

One man. One woman. Five hundred and one days in an RV-size space capsule. Will they still be speaking when they return?

The Inspiration Mars Foundation is seeking to send two people - potentially a middle-aged married couple - to space in a capsule that would pass within 100 miles of Mars.

Although no formal application process has begun, the Mars mission masterminds are already receiving résumés and technology ideas from interested people, said Jane Poynter, president of Paragon Space Development Corp., which is developing technologies for the mission that's hoping to launch in 2018.

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