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Does being in outer space, without the glare of the Sun, have any impact on human vision? Is dark-adapted vision improved when astronauts are orbiting the Earth and in its shadow?

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  • $\begingroup$ In what way would vision on the night side of an orbit be any different from vision on the night side of Earth? The absence of sunlight is the same. $\endgroup$ – Hobbes May 11 at 14:33
  • $\begingroup$ @Hobbes That is why I asked the question, is there something different about it than being on the surface of the Earth. For example, is there anything about being in a low-G environment that impacts vision. Is the sky over a desert at night the same darkness as viewing the stars from orbit? $\endgroup$ – Bob516 May 12 at 3:23
  • $\begingroup$ Yes, dark-adapted vision. $\endgroup$ – Bob516 May 12 at 3:24
  • $\begingroup$ related (but not specifically about dark-adapted vision): space.stackexchange.com/questions/219/… $\endgroup$ – Hobbes May 12 at 7:55
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No, but you see more stars than ever, the Milky Way and near galaxies due to the lack of a thick atmosphere and no light pollution. Also, due to no atmospheric refraction, you see every celestial body at the place it really is.

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  • $\begingroup$ The downvote proves the general hostility towards me due to the Anti-Venerean sentiment while I support flights to Venus. I want my account deleted, please! $\endgroup$ – User31481 May 13 at 5:43

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