Martian Jetlag? NASA Set for Next Mars Mission Reuters

No human has yet set foot on Mars, but at the Jet Propulsion Laboratory, dozens of NASA’s top planetary scientists are bracing for their first case of “Martian jetlag.” One problem for the scientists back on Earth is that a Martian day is 24 hours and 39.5 minutes long. Since the rovers run on solar power, they will wake up each day with the sunrise. The humans will work on the rover schedule.