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June 4-7, 2026
Hilton McLean Tysons Corner, McLean, Virginia
In the Washington D.C. Metropolitan Area
National Space Society's 44th Annual:
INTERNATIONAL SPACE DEVELOPMENT CONFERENCE (ISDC) 2026
The NSS invites you to ISDC 2026, the annual gathering of the global space community.
It takes place June 4-7, 2026, in McLean, Virginia, just outside Washington, D.C.
ISDC brings together visionaries in spaceflight, the NewSpace economy, and space settlement for four days of groundbreaking discussions and insights.
Connect with NASA astronauts, top space industry executives, researchers, engineers, and academics shaping the new space age.
This exciting, one-of-a-kind conference is open to everyone.
Call For Abstracts
Want to be considered as a speaker?
We are now accepting abstracts for ISDC 2026!
The submission deadline is April 15, 2026.
Explore cutting-edge topics
ISDC 2026 Sessions
Meet the Leaders of Space Exploration
ISDC 2026 Featured Speakers
Dr. Pascal Lee
Planetary Scientist, Co-founder and Chairman, Mars Institute
Dr. Sherry Bell
Dean of Psychology, Kepler Space University
Rod Pyle
Ad Astra Editor-in-Chief, Author, Host of "This Week in Space"
John Mankins
President, Mankins Space Technology
Nancy C. Wolfson
The American Institute of Aeronautics and Astronautics
Phil Swan
Director of Infrastructure, The Atlantis Project
Gary Barnhard
CEO, Xtraordinary Innovative Space Partnerships, Inc
Stevan Akerley
Space Ambassadors Program Director National Space Society
Bryce Meyer
NSS Space Ambassador, Space Farms, St Louis Space Frontier
Madhu Thangavelu
Dept of Astronautical Engineering, Viterbi School
What you can do at ISDC
THE ISDC 2026 EXPERIENCE
Collaboration turning vision into velocity.
From vision to voyage—powered by partnership.
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Past attendees
Trusted by Space Visionaries, Celebrated by Enthusiasts
ISDC: Shaping the Legacy of Space Conferences for Over 40 Years
Moments that Defined Space Dialogue
Jared Isaacman
Martine Rothblatt
Buzz Aldrin
Susan Kilrain & Hoot Gibson
Melissa Navia
William Shatner
Bill Nye
Neil deGrasse Tyson
Jeff bezos
Brian McManus & Isaac Arthur
Buzz & Neil
Elon Musk
Thank you to ISDC 2025 Sponsors for Making it Happen!
Interested in More Space?
Check out the National Space Society's Official Magazine
The International Space Development Conference and ISDC are registered trademarks ® ™ of the National Space Society.
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