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Guardian

Guardian

Science

Science

Swollen eyeballs, baby-like skin, and the overview effect: how astronauts feel when they return to earth

Guardian
Summary
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66% Informative

Astronauts Barry Butch ’ Wilmore and Suni Williams will return to the International Space Station on Friday .

Back on earth, they will struggle to walk, get dizzy easily, and have bad eyesight.

The lack of gravity causes significant, and irreparable, bone density loss.

It also causes muscles to waste in your arms, legs, trunk and elsewhere, including your heart.

Your blood volume shrinks, and the way your blood flows changes it slows in some areas, which can lead to clots.

Williams and Wilmore , who are at the end of their careers, might also offer useful research in this area.

The pair may also experience something called the overview effect’ Seeing the curvature of the earth, and seeing it from above as its own kind of space ship, has led some astronauts to report an incredible connection to humanity.

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71

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72

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52

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informal

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English

Language complexity

44

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medium-lived

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