If space is a vacuum, where does the oxygen and other things that r leaked into it go?
and if they stay in the space, couldn't we just fill space up with air technically (not saying it plausible or probable, but theoretically possible? (ignoring the fact that space infinitely expands.
and what happens when space expands to far? the big crunch??
if we could some how travel faster then the speed of light and look back would we see a ball of light that has been emitting from a central point in space? or no because we past where the viewing point of the light can be?