A living book of journeys into space

Every article rests on verifiable sources — NASA, ESA, mission archives, technical literature. Sources are cited directly on each article, and key facts (launch dates, crews, specifications) are cross-checked against multiple independent sources.

The encyclopedia is open to contributions: after registering, anyone can propose an edit or a new article. Every proposal goes through editorial review against a completeness standard — an article must have a hero image, verified sources, and complete mission data before it is published.

The benchmark of completeness is the Apollo 11 article: an opening spread with an infobox, mission chapters, crew, technical cutaways, period quotes, a gallery, and full source citations. New articles must approach this standard, or they remain in preparation.

Running the site and producing content is paid for by reader contributions and advertising. Ads are served by Google AdSense and Ezoic, are always visibly separated from the entries, and advertisers have no say in what we write or how.

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