Could Space Travel Make You Go Blind?

Astronauts who return from long trips in space often return with vision loss, and now researchers think they know why. How Long Could You Survive In Outer Space? - https://youtu.be/RjkrqMm52JI Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: New Findings on Astronaut Vision Loss https://www.nasa.gov/mission_pages/station/research/news/vision_changes.html "Could vision changes experienced by astronauts be linked to a vitamin B-12 or folate deficiency? While investig

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