This webpage is part of NASA's Visible Earth, a searchable directory of images, visualizations, and animations of Earth. It features remotely sensed imagery of volcanic eruptions that display smoke plumes, lava flows, fires, and other eruptive features. Each image is accompanied by a caption describing the subject being illustrated and the satellite or instrument which captured the image. Files are ... Full description.

This article describes the use of satellite remote sensing to examine supercell thunderstorms with the intent of predicting when or if they are likely to produce tornadoes. During the afternoon and evening of May 3, 1999, a series of supercell thunderstorms produced large, destructive tornadoes concentrated in central Oklahoma. During this outbreak, the NASA Tropical Rainfall Measuring Mission (TRMM) ... Full description.

At the end of 2003, there were 2600 known Near Earth Asteroids (NEAs), and of these 691 are brighter than absolute magnitude, which is taken to correspond to a diameter of 1 kilometer or more. Of these, 131 are classed as PHAs (potentially hazardous asteroids) larger than 1 km. This site describes the potentially devastating effects of a collision between Earth and a large meteor or asteroid. It also ... Full description.

This site presents a summary of current volcanic eruptions and images and videos of volcanoes on Earth. Discussions of the characteristics of volcanism on other worlds in our solar system are also presented and are accompanied by maps and imagery. Links to volcano observatories, parks, and monuments around the world are also included. Full description.

This is the National Oceanic and Atmospheric Administration's hurricane website. Features include weather watches, warnings, and forecasts. Also included are links to other NOAA sites, preparedness guides, imagery, and information on the Saffir-Simpson scale. Full description.

These five activities are sequential and are designed to cover introductory volcano topics. Included are objectives, materials lists, procedures, and a selection of related sites for students to access. Full description.

Kids can explore environmental science topics using satellite imagery and NASA data. Materials presented here explain how people affect the Earth and how NASA studies land, water, the atmosphere, and natural hazards from space. Factoids which change every few minutes are presented, and kids can send postcards featuring NASA images to their friends. Full description.

This collection of basic definitions and answers to questions about hurricanes and tropical cyclones includes how they form, how they are named, how intensities are measured, and how storms are forecast. Historical information, information on myths surrounding these storms, links to sites displaying real-time storm information, and safety tips are also included. Full description.

NASA's Visible Earth is a searchable directory of images, visualizations, and animations of the Earth. The images are also listed under the following categories: agriculture, atmosphere, biosphere, cryosphere, human dimensions, hydrosphere, land surface, oceans, radiance or imagery, solid earth, locations, and satellites. Accompanying each image are credits, data about the image, the satellite it ... Full description.