International Space Development Conference 2026: June 4-7, 2026

Hilton McLean Tysons Corner, McLean, Virginia

International Space Development Conference 2026: June 4-7, 2026

Hilton McLean Tysons Corner, McLean, Virginia

The year's Most Important Space Conference

Orlando, Florida at the Rosen Centre Hotel

Save the Date!  June 19 - 22, 2025

National Space Society's 43rd Annual:

International Space Development Conference® (ISDC) 2025

Diverse

Engaging

Innovative

Inspiring

visionary

Embark on the Journey

Three Steps to Launch

While many are content just watching the stars, this community is full of those who aim to reach them.

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Save the Date!

Mark your calendar! June 19 - 22, 2025, in Orlando, Florida.

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Register Today

Secure your place at the conference with registration!

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Join the Community

Experience ISDC. Become a part of something cosmic.

Meet the Leaders of Space Exploration

ISDC 2025 Featured Speakers

Susan Kilrain

Former NASA Astronaut

05 Kilrain, Susan

Robert "Hoot" Gibson

Former NASA Chief Astronaut

06 Gibson, Robert “Hoot”

Dr. Gretchen Green

Astronaut, Explorer, Educator, The Expert Resource

10 Green, Dr. Gretchen

Dr. Andrew Aldrin

CEO and President, Aldrin Family Foundation

Aldrin, Dr. Andrew

James E. Dunstan

Outer Space Lawyer

Dunstan James E.

Rees Empey

Senior Director of State Government Affairs, Libertas Institute

Empey, Rees

Chris Ferguson

Former NASA & Boeing Astronaut

Ferguson, Chris

Rob Ferl

Director of Astraeus Space Institute, University of Florida

Ferl, Rob

Nicola Fox

Associate Administrator, Science Mission Directorate

Fox, Nicola

James L. Green

Senior Advisor, NASA Headquarters (Ret.)

Green, James L.

Joe Haldeman

Author

Haldeman, Joe

Jared Isaacman

Mission Commander Polaris Dawn & Inspiration4

Isaacman, Jared

Tariq Malik

Editor-in-Chief, Space.com

Malik, Tariq

Anastatia Mayers

Virgin Galactic Astronaut

Mayers, Anastatia

Mike Mongo

Astronaut Teacher

Mongo, Mike

Dr. Story Musgrave

Retired NASA Astronaut

Musgrave Dr. Story

Anna-Lisa Paul

Director and Professor, University of Florida

Paul, Anna-Lisa

Dr. Sian Proctor

Inspiration4 Astronaut

Proctor, Dr. Sian

Dr. Martine Rothblatt

Co-Founder, SiriusXM Radio

Rothblatt, Martine

Keisha Schahaff

Virgin Galactic Astronaut

Schahaff, Keisha

Winston E. Scott

Retired NASA Astronaut and U.S. Navy Aviator

Scott,Winston

Bryan Versteeg

Conceptual Designer, Spacehabs.com

Versteeg, Bryan

While many keep worrying over terrestrial matters...

You're uniting with those who dream beyond the stratosphere.

"Here, I feel included."

- Chloe S.

"These are my people!

Every discussion, every session is hope and optimism redefined."

- Travis W.

OVER

Customers served! 0 +  Past attendees

Trusted by Space Visionaries, Celebrated by Enthusiasts

  • Join the community & legacy of the 43rd ISDC
  • Be among over 1000 attendees this year
  • Past speakers have included visionaries like Buzz Aldrin, Isaac Arthur, Eileen Collins, Neil deGrasse Tyson, Jared Isaacman, Kathryn Lueders, Lori Garver, Dr. Eric Smith, Elon Musk, Bill Nye, Jeff Bezos, Dr. Mae Jemison
  • Our platform has driven legislation and inspired countless individuals to pursue STEM education.

ISDC: Shaping the Legacy of Space Conferences for Over 40 Years

Moments that Defined Space Dialogue

Interested in More Space?

Check out the National Space Society's Official Magazine


Thank you to ISDC 2025 Sponsors for Making it Happen!

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