I mean, on earth, I assume that as sun shine on the day time part of earth, light are dispersed by the sky making our day time sky blue? But how does light gets distributed outside of our atmosphere?
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The ISS’s “night” is when the Earth eclipses the sun, and their “day” is when the sun is shining. This happens several times in a 24 hour period, it’s quite a rapid cycle.
Presumably they still try to sleep in a single ~8 hour block though.
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