At this site, users can access and compare data from a large selection of spacecraft, instruments, and ground-based facilities. Most data is related to studies of solar wind, other particle emissions, and Earth's magnetic field. 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.

This resource offers access to a variety of materials, including general information about COOL, a photo gallery, press releases, talks and papers, and research projects. There are links to archived and real-time ocean data (sea surface temperature, surface currents and waves, autonomous glider data), and an "underwater weather forecast". Full description.

Visitors to this site can access information on tropical storms and hurricanes in the Atlantic Ocean as far back as 1851. Information provided here includes a yearly map showing the tracks of all storms, and individual maps for each storm. The individual maps are accompanied by data tables that show latitude, longitude, wind speed, dates, and times. Full description.

The Earth Observing System (EOS) consists of a series of Earth-observing satellites, a data system, and teams of scientists who will study the data. Educators can access a set of links to educational materials and publications, and real-time satellite tracking data. Other materials include mission profiles, information on the 24 measurements taken by EOS, research papers and reports, news articles, ... Full description.

This document discusses the mission of ICESat, the benchmark Earth Observing System satellite intended to measure ice sheet mass balance, cloud and aerosol heights, topography, and vegetative cover. Questions of particular interest to the mission include: is sea level is rising?; are the Greenland and Antarctic ice sheets growing or shrinking?; are ice sheets are capable of causing large, rapid changes ... Full description.

This site presents a brief account of the Near Earth Asteroid Rendezvous (NEAR) flyby of the asteroid 253 Mathilde. Materials include descriptions of the NEAR mission, pre-encounter optical navigation, science objectives, images, and animations. Links to related topics are included. Full description.

Visitors to this site can learn about conditions necessary to view auroras from their geographical location. Materials provided include an explanation of geomagnetic activity and maps showing its distribution, and an explanation of how geographic latitude differs from magnetic latitude, with tables showing magnetic latitudes for major cities around the world. Links are provided to auroral activity ... Full description.

Users can access a variety of information about the The SOHO Extreme Ultraviolet Imaging Telescope, as well as maps, imagery, and data. A description of the instrument is provided, along with temperature maps, movies and images of eclipses, solar storms, and coronal mass ejections. Links to related sites are also included. Full description.

Visitors can use sea surface temperature data to build animations that show seasonal and yearly fluctuations, and compare them to data from other selected months and years. The animations can be constructed in map or globe formats and may be viewed on the website or downloaded. Full description.