Many different factors affect the density of air. Most measurably, as altitude increases, air becomes less dense, decreasing atmospheric pressure. Standard altitude-pressure tables allow ...

It seems as if Earth's atmosphere is incredibly thin, wrapped tightly around our planet. In fact, the atmosphere consists of multiple layers, with some scientists of the opinion that the atmosphere ...

This contraction reduces the density of the atmosphere, thereby decreasing the ... located between 85 and 600 kilometers (53 and 373 miles) in altitude, plays an important role in managing space ...