Four ESA spacecraft orbiting the Earth to investigate the small-scale structure (in three dimensions) of the Earth's plasma environment. News, orbital position, mission overview and scientific resources.

Information and data listing the Explorer series of spacecraft (1958-1991).

Information on the IMAGE mission at Southwest Research Institute.

EOS consists of a science component and a data system supporting a coordinated series of polar-orbiting and low inclination satellites for long-term global observations of the land surface, biosphere, solid Earth, atmosphere, and oceans.

Extensive press kit for NASA's planned two-year TIMED (Thermosphere Ionosphere Mesosphere Energetics and Dynamics) mission, aimed at studying the Mesosphere and Lower Thermosphere/Ionosphere (MLTI).