Space Science: Missions: Unmanned: Earth Orbit

Information on the IMAGE mission at Southwest Research Institute.

Story of the Vanguard satellite program. Discusses the planning, setbacks, successes, and launchings, and includes effects of individual and mass psychology.

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

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.

Information from the Goddard Space Flight Center on the current mission objectives and schedules.

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.

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.

Technology mission designed to demonstrate advanced land imaging instruments. Features description of the mission, spacecraft and technologies.

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).

Satellite to measureme the atmosphere, ocean, land, and ice over a five year period. Extensive news, mission, user services and products info.

Four spacecraft orbiting the Earth to observe magnetosphere and other solar physics phenomena. News, orbital position, mission overview and scientific resources.

A planned mission by the SpaceDev commercial corporation. Includes an overview of the mission and information on its experiments.

Features the project page of an Earth orbiting spacecraft to study the Solar radiation.