This archive houses an extensive collection of imagery taken by the SeaWiFS instrument aboard the SeaStar spacecraft. Viewers can select ocean color or chlorophyll imagery, geographic features, coastlines, and other phenomena such as dust storms, plankton blooms, hurricanes, or fires. Movies, animations, and an extensive selection of links to related topics are also provided. Full description.

This is the homepage of the SeaWiFS Project. Users can access remote imagery, datasets, information on the spacecraft and receiving stations, and data processing applications. Educational materials include a tutorial and presentation on ocean color, a teachers' guide with activities, imagery, and a teachers' workshop. Full description.

Students can learn basic information about El Nino from this description, which makes use of data from the TOPEX/Poseidon mission. Links to related topics are included. Full description.

This collection of images, movies, and animations from NASA's Solar and Heliospheric Observatory (SOHO) features a large selection of images of the sun and of solar phenomena. Although most of the imagery is of the sun, a few images of comets and planets as they transit the solar disk are available. Full description.

Users can read and view imagery that explains objects in our universe that produce a vast range of radiation with wavelengths either too short or too long for our eyes to see. Materials presented here show that the type of radiation emitted by an object is determind by its temperature. A table showing the types of radiation, temperatures, and types of celestial objects that emit them is included. ... Full description.

This database of imagery houses a large collection of satellite images capturing some of the more important weather and environmental events of the last 30 years. Users can access images of many types of storms, fires and smoke, floods, weather fronts, ocean and sea surface phenomena, and snow cover. Full description.

This article presents text, images, and animations of a solar flare and coronal mass ejection that occurred in August 1999. Links to related topics and articles are inlcuded. Full description.

In the winter of 1999-2000, relatively little snow cover blanketed North America, and it melted early. Users can read and view satellite imagery that discusses how NASA's Terra satellite and its Moderate Resolution Imaging Spectrometer (MODIS) were able to record this phenomenon, and how spring snow cover data can be used to predict flood or drought conditions. Full description.

Visitors can access near-realtime measurements of ozone in the atmosphere. A full global image can be selected, or today's measurements, or ozone data over any chosen location. Archived measurements are available as far back as November 1978, and a link to an online textbook about stratospheric ozone is provided. Full description.

Visitors can learn about the relatively new field of imaging spectroscopy, which allows specific absorption features, caused by chemical bonds in materials, to be mapped spatially. Topics include an introduction to the procedure, environmental applications, vegetation and biota mapping, lithologic, and mineral mapping. A set of links provides access to reports, accompanied by spectroscopic images, ... Full description.