The Elysium habitat in the movie is open topped with walls on a spinning torus not a sealed container like the ISS. On Earth this works because of the combinati

The Elysium habitat in the movie is open topped with walls on a spinning torus not a sealed container like the ISS. On Earth this works because of the combination of gravity and the size of the atmosphere pressing on itself. https://image-engine.com/case-studies/elysium/ https://image-engine.com/case-studies/elysium/