"While spacewalking I realized something, I used to think I was scared of heights but now I know I was just scared of gravity"
― NASA astronaut Reid Wiseman
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@wonderofscience Since gravity is generally used to define "down", and you need a down to have a "height" (from where you are to the nearest large object downward (the "ground")), it makes sense that a low-gravity environment could make one less scared of heights.
