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NASA investigates vision disorder affecting 70% of astronauts (www.nasa.gov)

submitted 5 days ago by drmoose@lemmy.world to c/science@lemmy.world

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NASA scientists are intensifying their investigation into a vision disorder that affects 70% of astronauts on long-duration space missions, as new research reveals the condition poses mounting risks for future Mars exploration 1 2. Space- Associated Neuro-Ocular Syndrome (SANS) causes crew members to experience blurred reading vision, swollen optic discs, and flattened eyeballs that can persist for years after returning to Earth

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[–] DeathsEmbrace@lemmy.world 2 points 3 days ago (1 children)

At that point just build a death star

[–] MotoAsh@lemmy.world 2 points 3 days ago* (last edited 3 days ago) (1 children)

Nah, wholly uneven centripedal forces with a spinning sphere. The entire point of a ring is that all along the outer surface is the same force. A sphere would have a gradient depending on lattitude. Maybe useful for experiments, but it'd likely be uncomfortable moving around in it.

[–] DeathsEmbrace@lemmy.world 1 points 3 days ago (1 children)

Not if you make a proper core instead of the weaponry then you could get gravity based on a highly compressed material creating the gravitational force. If you go big youre going all in.

[–] MotoAsh@lemmy.world 1 points 3 days ago* (last edited 3 days ago)

But then you'd have to move the mass equivalence of the Earth itself, which completely and utterly ruins the entire point of a space craft. Just move the entire Earth like in that one Chinese movie at that point...