Features a variety of resources for space exploration and introduction to space flight. Includes many interactive and 3D animated views.

Comprehensive resource providing articles on most space technology subjects and space flight history.

ESID is an ESA database of more than 400 space companies and 1000 products.

Real-time satellite, ISS, and Space Shuttle orbital pass information, maps, and star charts.

Developer of a range of spacecraft and scientific payloads providing project overviews, scientific and engineering articles.

Features a Russian project to sky-jump from space (over 40km altitude). Includes background of the project initiator, Mogamed Tolboev.

Offers an updated list of coming launches, information about ionizing radiation and related resource links.

A Java applet that will calculate when spacecraft will be visible in the night sky over the viewer's own location.

News and history of the Russian space program by Anatoly Zak, a journalist.

Provides a space and astronomy related directory.

Offers a collection of popularized material on space projects and astronomy. Includes forums and merchandising.

News, information, and resources about space exploration for the armchair space traveler.

Large collection of google group postings on all aspects of space exploration and development.