Since 1981, the
National Space Society (NSS) has sponsored the International
Space Development Conference, attracting speakers ranging from Dr.
Buzz Aldrin, the second human to walk on the moon to Dr. Robert Zubrin, the man who wants us to walk on Mars. In between this A and Z have been some of the most prominent names in the development of technology, astronomy, electronics, law, space tourism, space solar power, and commercial possibilities on the next frontier.