Space Lettuce Could Reduce Astronaut Bone Loss

All kinds of challenges will face the first humans to travel to Mars. One that has been much discussed, with no potential solution yet, is the potential for a significant amount of bone density loss on the three-year mission.  Astronauts lose about 1% of their bone density per month in the microgravity of the ISS. That’s not too big of a deal if they are only on the station for six months, but the two 10-month space trips of a mission to the red planet could be a concern.  Now a team of researchers think they have a solution – have the astronauts eat more salad.

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