I would hazard a guess that millennia of human space colonization of Earth-orbit and other solar system space colonies will also select for… 1. Larger eyes in response to the dimmer environment of colonies further from the Sun than Earth . . . Eyes would seem unnervingly large to us and have “eye shine” from the tapetum lucidum. Sideways blink of the reintroduced plica semilunaris to further protect from cosmic ray effects would be particularly startling. 2. More pigmented skin to alleviate the damaging impact of much more harmful UV radiation outside of the Earth’s protective ozone. 3.
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