You would expect astronauts to shrug off something as ordinary as plain travel sickness, but no: in fact most feel queasy for their first days in orbit, a common bout called space adaptation syndrome, and even veteran pilots get it

You would expect astronauts to shrug off something as ordinary as plain travel sickness, but no: in fact most feel queasy for their first days in orbit, a common bout called space adaptation syndrome, and even veteran pilots get it

There is a problem the astronaut training pipeline can’t fully train out of a person: nausea. Not the nerves-before-launch kind, but the plain, green-around-the-gills kind you might get in the back seat of a car on a winding road. The fittest, most rehearsed humans we send off the planet can still arrive in orbit feeling sick. NASA puts the number high. In a 2025 medical brief, it says the broader space adaptation sickness affects 70 to 90 perce…