MonkeyGirl18 wrote:I dont get how there's a scent of space. I would've assumed you need air to have scent.
The astronauts don't smell anything while they're out in space (inside space suits), but they comment on how it smells different when they're back in the ship/station and those who were inside say the ones coming back inside smell different as well.
The idea that space is a vacuum means it's devoid of everything is misunderstood. A vacuum means very very low pressure (zero), but there is obviously stuff out there and that doesn't go away with low pressure. Of course we've only been outside in space within earth's gravitational field (the moon is bound to the earth via gravity, so it's within that field as well). This gravity zone/area may very well have more stuff (dust etc.) than areas outside of any planetary gravitational field (don't forget the sun's gravity holds the whole solar system together--so there's probably stuff floating around there too).
Then again, there may be all kinds of stuff floating around out there that we just can't see because it's so dark!