Goddard Moonbase was a research installation on the surface of Luna, constructed on reference stardate -1/98. One of the first large-scale international space projects, it initially provided facilities for space research and industry, and accommodations for seventy. It underwent the first of a series of expansions on stardate 0/04. (TOS reference: Spaceflight Chronology)
In 2028, Goddard Moonbase played host to a professional-level tennis tournament. Melody Sawyer was the second-seeded player in the semifinals of this competition. (TOS novel: Strangers from the Sky)