Heavy rain and snow will hit Northern California throughout most of this week as an atmospheric river moves through.

Where is the snowiest place on Earth? Snow enthusiasts have been discussing it for a long time, but there’s no consensus.

Why? Because of the many factors which affect atmospheric pressure. Pioneering scientists discovered atmospheric pressure (also known as barometric or air pressure) in the 17th century ...

Our planet is surrounded by an invisible shell of air, called the atmosphere, held in place by the Earth’s gravitational field. It’s made up of a mixture of different gases. About 78% of the ...