This web page, authored by the University Corporation for Atmospheric Research, is a teacher's guide for an activity on energy transfer through radiation. Students investigate the relative absorption of light energy by...

The Aura Ozone Monitoring Lithograph describes where ozone is found, how ozone is formed, and the effects of ozone on biological processes. How and why NASA studies ozone is covered along with how individuals can monitor...

This color brochure answers common questions about the aurora borealis, including its cause, as well as explanations of its colors, shapes, and location. It also lists resources for further study. The brochure may be...

Mish Denlinger of San Francisco's Exploratorium created Auroras: Paintings in the Sky, a Web exhibit devoted to this beautiful celestial phenomenon. Visitors are introduced to how auroras are created, what they look from...

This video segment, adapted from a NOVA broadcast, provides an account of the 1995 avalanche that overran the fishing village of Flateyri, Iceland, killing 20 people. It also points out the unpredictability of such...