1618: Issac Beekman compares air to water, and the pressure water exerts at depth, and comes up with ... which measures atmospheric pressure (a measure of the pressure exerted by the atmosphere ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

Big storms can strip some parts of Jupiter's atmosphere of ammonia, while leaving buried reservoirs of the gas elsewhere.

The movement and space between particles in a fluid affects the amount of pressure the fluid exerts. This means that the pressure in a fluid changes depending on its height, depth and temperature.