When people don't get enough oxygen, they often begin to gasp for air. They may also feel dizzy and light-headed. Besides these symptoms of altitude sickness, others such as headache and fatigue may also occur.
" We gave them something to hope for." " That's not hope! " In the Dune: Part Two trailer, we see Lady Jessica gasping for air and opening her eyes, now the vibrant blue of the Fremen.
This is because warm air doesn't rise in space, so sleeping astronauts in poorly ventilated sections can wake up gasping for air, surrounded by an invisible bubble of their own exhaled carbon dioxide.
I still remember watching that movie in theaters and hearing the crowd gasp during that iconic scene of the car drifting through the throngs of people crossing the road.