SciShow Space

We Don’t Know Why Astronauts Get Motion Sick (2023x9)

: 31, 2023

A majority of modern astronauts experience any one of a suite of symptoms scientists collectively call Space Motion Sickness, or SMS. But despite knowing about it for nearly as long as humans have gone into space, we still don't know exactly what causes it, or how to predict which astronauts might lose their lunch.