Contact Us

For general ISDC inquiry, including registration by phone, registration processing status, NSS membership discounts, and general information:

By Telephone: +1 202-429-1600
By Fax: +1 202-530-0659

For media relations and publicity, please send an email to our

For general ISDC sponsorship, VIP speaker and management related questions, please send an email to

For website issues, including broken links and registration problems, please send an email to our

To contact us via postal mail:

National Space Society
1155 15th Street NW, Suite 500
Washington, DC 20005

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[ Click for Mobile Version ] Last updated on May 25, 2012. 1155 15th Street NW, Suite 500, Washington, DC 20005 Tel: (202) 429-1600 -- FAX: (202) 530-0659. Copyright © 1998-2012, National Space Society. Direct questions about ISDC 2012 to: If you cannot see some of the images or text, please check your Ad Blocker or Twitter blocker filter, and add exception for NSS.org. Best view on Safari 4+, FireFox 5+, IE9+, and iOS device. Please report website problems to: NSS Privacy Policy.

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