Ordinary air. You would only notice the wind.
Smartasaurus interactive
The Ascent
Scroll straight up. Ground level to the Moon, 384,400 kilometres of it. The air runs out early and almost nothing up here wants you alive.
Scroll to climb
Ground level
One atmosphere of air on your shoulders. You never notice it.
Half the atmosphere is below you
Everything above this point is thinner than the air you have ever breathed.
Summit of Everest
The death zone. Bodies fail here even with training and bottled oxygen.
The Armstrong limit
Pressure drops so low that the water in your body boils at 37°C.
The Kármán line
The official start of space. No air left to fly through — only orbit works.
The Space Station
Falling around Earth at 28,000 km/h and missing the ground every time.
Geostationary orbit
Sit here and you hover over one spot on Earth forever. Every TV satellite lives at this ring.
The Moon
The furthest any human has been from home. Twelve people have stood on it.
You made it all the way up
0 km
Every human who has ever lived, except two dozen of them, has stayed below the first 400 km.