This website features the most complete set of astronaut photography of Earth from the beginning of human spaceflight in the 1960s to the digital photographs being downlinked daily from the International Space Station. The underlying database includes over 430,000 records in 2002, with new data added daily. The pages are maintained by the data source at NASA's Johnson Space Center and include search ... Full description.

For ecologists, the horseshoe crab is an important creature- a vastly adaptable organism that predates most species on the planet, with a lifecyle that is interlocked with other animals. Users can view information, photographs, and diagrams that explain the anatomy, range and habitat, lifecycle, ecological niche, reproductive cycle, and medical uses of the horseshoe crab. Full description.

The National Weather Service provides weather and marine data from buoys surrounding North America, the Carribean, and Great Britain. Historical and realtime data are featured. Data include wind, waves, atmospheric pressure, air and water temperature, and dewpoint. Frequently Asked Questions explain how the marine stations collect and transmit data, how quality is assured, and how the National Data ... Full description.

This website contains illustrated information and classroom-ready activities for teachers, students, and anyone who wants to learn about aquatic environments. The site is divided into seven topical sites, either by habitat or species. "Space Available" focuses on using satellite imagery to study the oceans, and includes sections on the human impact on oceans, weather, remote sensing, and how satellites ... Full description.

The Earth Science Picture of the Day is an image archive that is hosted by the Universities Space Research Association in association with NASA's Goddard Space Flight Center with a record of entries beginning September 2000. Each image is accompanied by a descriptive text and links to relevant supporting websites. Keyword searching is provided. Browsing by related fields includes: agriculture, astronomy, ... Full description.

This poster/handout is a companion to the EOSDIS Data Sampler #1 CD-ROM for the Western U.S. Wildfires 2000. It features coincident images taken on 8/30/2000 by the instruments ASTER, CERES, MISR, and MODIS, and data from August 22-27 for MOPITT, at various combinations of spectral bands, look angles, and resolutions. Text on the front assists the user to understand what the images display. Background ... Full description.

Life Without Light presents material describing the unique animal communities surrounding deep-sea methane seep habitats in the Gulf of Mexico. Visitors can study numerous photographs and brief text descriptions of tubeworms, mussels, ice worms, and other organisms that inhabit an ecosystem that exists in total darkness. Other materials include an article on deep-sea submersibles, videos of sea life ... Full description.

The National Climatic Data Center (NCDC) is the world's largest active archive of weather data. Climate data for cities and locations throughout the U.S. and around the world are available here. Products include land-based, upper air, satellite, and marine measurements of precipitation, wind, atmospheric pressure, clouds, and solar activity. Educators and government researchers can access many of ... Full description.

This database provides access to discharge data from the original UNESCO river archive in a digital format for use by researchers and planners in the water sciences community. While this is a very good global resource, it does not present information on rivers in the United States. Full description.

This site presents average ice conditions estimated using satellite passive microwave data for the most recent month available, as well as snapshots of trends and anomalies that compare these recent conditions with the mean for the month. Full description.