4 ms·
> Gradual loss of vision due to microgravity I'm interested on this, as I'd never heard of it before. Can you tell more about it?
by euyyn 11y ago
> Gradual loss of vision due to microgravity
I'm interested on this, as I'd never heard of it before. Can you tell more about it?
- iwwr 11y agoIn microgravity fluids get redistributed throughout the body. The upper body and head get comparatively more (as opposed to normal gravity), which causes immune problems (swollen sinuses) and increased pressure in the eye and blood vessels around it, sometimes headaches and other issues. Microgravity is not a must for the Mars trip, however.
- troutwine 11y agoSure! It's been under active investigation by NASA for about eight years now: https://www.nasa.gov/mission_pages/station/research/experiments/1038.html https://www.nasa.gov/mission_pages/station/research/experime... We're fairly sure we understand the mechanism--there's an experiment ongoing to confirm now, especially with regard to Commander Scott Kelly and his year-long mission on the ISS--but we're not entirely sure what to do about it if we're right. We're pretty well obligated for the next fifty years--give or take--to microgravity environments for long-duration spaceflights for lack of research into spinning toruses or tether systems. Microgravity is a tough environment for a human to live in, physically.