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Scientists suffering perpetual jet lag while on Mars time

AUG 05, 2008
Physics Today

USA Today : Morten Bo Madsen spends his work day crunching data on a laptop seated in front of a clear plastic-covered box about the size of a widescreen computer monitor that emits a startlingly bright blue light.

Madsen is one of the 150 scientists and engineers working on NASA’s Phoenix Mars Lander mission. The bright light keeps Madsen’s internal clock in check, because Madsen is living on Mars time.

Mars’ day is 40 minutes longer than Earth’s, and the start of the Martian day is always changing with respect to Earth time, as a result of their respective orbital motions.

Living on a schedule that shifts forward by 40 minutes everyday can wreak havoc on the human body, creating an effect that is essentially like perpetual jet lag.

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