Astronauts on the ISS experience vision changes — should Mars travelers be worried?

Scientists are trying to find a solution to microgravity-induced vision changes to ensure future long-duration space travelers remain in healthy condition.

The post was publish in first on this website : https://www.space.com/space-exploration/human-spaceflight/astronauts-on-the-iss-experience-vision-changes-should-mars-travelers-be-worried