The orbit of Earth on a tilted axis around the sun leads to the seasons. The resulting change of angle of the sun, and length of day controls how warm we get at different times of the year. With those changes in seasons come changes in...

Behind every weather forecast—from your local, five-day prediction to a late-breaking hurricane track update—are the satellites that make them possible. Government agencies depend on observations from weather satellites to inform...

A heatwave in the U.S. southwest is being intensified by climate change and the most vulnerable are paying the price. The region accustomed to high temperatures but not at the sustained level it's experiencing this week.

The U.S. gets all kinds of severe weather. What makes all of it so powerful sometimes?