TIMED
- 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).
- http://www.timed.jhuapl.edu/WWW/index.php

Imager for Magnetopause to Aurora Global Exploration
- Information on the IMAGE mission at Southwest Research Institute.
- http://pluto.space.swri.edu/image/

Explorer Spacecraft Series
- Information and data listing the Explorer series of spacecraft (1958-1991).
- http://www.hq.nasa.gov/office/pao/History/explorer.html

ENVISAT
- ESA satellite to measure the atmosphere, ocean, land, and ice over a five year period. Extensive news, mission, user services and product information.
- http://envisat.esa.int/

Cluster
- 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.
- http://sci.esa.int/science-e/www/area/index.cfm?fareaid=8

Earth Observing System (EOS)
- EOS is the centerpiece of NASA's Earth Science Enterprise (ESE). Includes 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, biosphe
- http://eospso.gsfc.nasa.gov/