Why Astronauts' Lower Eyelids "Let Go" in Space

August 27, 2026 Universe Today

Why Astronauts' Lower Eyelids "Let Go" in Space
By Matthew Williams (https://ift.tt/jNAlOiX)

NASA astronaut Karen Nyberg images her eye with a fundoscope aboard the International Space Station during the Expedition 37 mission in 2013. Credit: NASA

A new study identifies possible mechanisms behind changes in astronauts' lower eyelids, a symptom associated with long periods in space that can affect their eyesight.

August 28, 2026 at 03:15AM
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