Solar scientists have long debated why the Sun's corona, or atmosphere, is millions of degrees hotter than its surface. Images retrieved by the Hinode satellite, launched in 2006, are shining some light on this paradox.

A tip sheet listing experts in the field of hurricane research.

Backgrounders on climate change, hurricanes, thunderstorms, and more provide a quick feel for the science, people, and issues involved in major weather and climate topics researched at NCAR & UCAR.

Nitrogen is essential to all living systems, which makes the nitrogen cycle one of Earth's most important nutrient cycles.