For registration by phone, registration processing status, NSS membership discounts, and general information:
Telephone: +1 949-229-3422
Fax: +1 206-888-6071
(please do not include any sensitive information such as credit card numbers)
Media Relations and Publicity, please email our Media Liaison.
ISDC Sponsorship, VIP Speaker and Operational Questions, please email our ISDC Chair.
Exhibits, please email our Exhibits Coordinator.
Badges, please email Badges Coordinator.
Website Issues (broken links and registration problems), please email our ISDC Webmaster.
Abstract Submissions and Requests to Present, please see submission requirements.
Volunteers, please email our Volunteer Coordinator.
By postal mail:
National Space Society
P.O. Box 98106
Washington, DC 20077-7082
Or by contact form: