Sputnik
Sputnik, Sputnik 1, Sputnik 2, Sputnik and The Dawn of the Space Age, Sputnik Revisited, Sputnik: First Artificial Satellite, Sputnik: The Shock of the Century
CHIPSat
A planned mission by the SpaceDev commercial corporation. Includes an overview of the mission and information on its experiments.
Cluster
Four spacecraft orbiting the Earth to observe magnetosphere and other solar physics phenomena. News, orbital position, mission overview and scientific resources.
Earth Observing 1
Technology mission designed to demonstrate advanced land imaging instruments. Features description of the mission, spacecraft and technologies.
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, biosphere, solid Earth, atmosphere, and oceans.
ENVISAT
Satellite to measureme the atmosphere, ocean, land, and ice over a five year period. Extensive news, mission, user services and products info.
Explorer Spacecraft Series
Information and data listing the Explorer series of spacecraft (1958-1991).
Explorers Program
Information from the Goddard Space Flight Center on the current mission objectives and schedules.
Imager for Magnetopause to Aurora Global Explorati
Information on the IMAGE mission at Southwest Research Institute.
Keo
To be launched in 2005, Keo will fly through space for 50,000 years before returning to Earth to deliver messages. You can enter a message free of charge.
Solar Anomalous and Magnetospheric Particle Explor
Offers overview and results of a scientific space mission to study the charged particles from the Sun. Includes extensive scientific articles on results from the mission.
Solar Radiation and Climate Experiment (SORCE)
Features the project page of an Earth orbiting spacecraft to study the Solar radiation.
Terra (EOS AM-1)
The flagship of the NASA Earth Observing System. Terra will enable new research into the ways that Earth's lands, oceans, air, ice, and life function as a total environmental system.
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).
Vanguard: A History
Story of the Vanguard satellite program. Discusses the planning, setbacks, successes, and launchings, and includes effects of individual and mass psychology.