The actual answer is that the vacuum of space does not exert any force on the atmosphere at all. It does not “suck” the air. We associate the word “suck” with “vacuums” but it’s a misnomer. That’s not what vacuums do. What’s actually happening there is that the air pressure around the box is forcing air into the space with no pressure. The air that fills the box is being pushed by air pressure into the empty space. Vacuums never “suck” air. What they do is present an empty space and then air pressure forces the air into the vacuum. https://www.forbes.com/sites/quora/2017/05/16/why-doesnt-the-vacuum-of-space-suck-up-earths-atmosphere/#7596e1015fff
