How do astronauts in the ISS know which way is up? Does it matter?
In: Planetary Science
It only matters when reading control panels and such mounted to the walls and for navigating through branching modules where junctions could be up/down or right/left or forward/backward all depending on your orientation.
Generally things are oriented alike for the most part just so the astronauts don’t have to constantly reorient themselves when moving from one thing to the next, but that’s the only real reason it would matter.
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