The International Space Development Conference (ISDC) is the annual conference of the National Space Society (NSS). Now in its 33rd year, these conferences connect the general public and the NSS membership with leaders of contemporary space efforts. The ISDC provides a nexus for industry, government, scientists, advocates, and the public to meet and discuss the latest issues in space technology, science, policy, commerce, medicine, exploration, settlement and much more. Winners of the annual NASA space settlement Contest annually attend the conference, with several interesting activities and programs. With National Space Society's major goal being to accelerate the process of space exploration and development they also foster astronautics for students by encouraging them and getting them involved.
The first ISDC was held in Los Angeles in 1982. The CoChairmen were Jerry Pournelle and Milton Stevens, and most of the convention staff were volunteers from the Los Angeles Science Fantasy Society (LASFS), although it was emphasized that the conference was professional in nature, and would not be a science fiction convention. The Professional Guest of Honor was Fred Haise of Apollo 13, then CEO of Grumman. Attendees included Buzz Aldrin, Max Hunter, General Daniel Graham, Dick Rutan, and a number of space oriented professionals. Science Fiction author Robert Heinlein was the "fan guest of honor". It was intended as a one of a kind convention, but was successful enough that the attendees acclaimed it the "First Annual" Space Development Conference and voted to hold the second meeting in Houston with Art Dula as Chairman.
The 32nd International Space Development Conference, was held at the La Jolla Hyatt Regency, San Diego, California, May 23–27, 2013. The conference theme is "Global Collaboration in 21st Century Space", inviting all nations of earth to join in the greatest human endeavor, to become an interplanetary species. ISDC 2013 was chaired by Dave Dressler of the "San Diego Space Society". The opening keynote speaker was Bas Lansdorp, CEO of Mars One. Former Indian president Dr. A. P. J. Abdul Kalam spoke at the Friday night Gala dinner about an international initiative involving six nations to build a Space Based Solar Power system (SBSP). Several astronauts presented at ISDC such as Buzz Aldrin, Christopher Ferguson and Mae Jemison.