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

June 4-7, 2026

Hilton McLean Tysons Corner, McLean, Virginia

In the Washington D.C. Metropolitan Area

Hotel Reservations

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

Interested in presenting at

ISDC 2026?

Submit an Abstract

The submission deadline is April 15, 2026.

What you can do at ISDC

THE ISDC 2026 EXPERIENCE

Get an Astronaut’s Perspective

Space Settlement Showcase

Your place in the global space Community

Who belongs at isdc?

ISDC is open to everyone who’s excited about humanity’s future in space. Whether you’re coming to learn, present, network, or just soak up the energy of an event dedicated to humanity’s next steps in space, ISDC offers something for all who believe in a spacefaring future.
It’s ideal for:

Professionals in aerospace, engineering, and related fields looking to connect and share insights.

Students and young professionals seeking inspiration, mentorship, and STEM opportunities.

Educators and researchers sharing ideas, discoveries, and educational programs.

Space advocates and enthusiasts who want to be part of a welcoming global community dreaming big about the future.

Explore cutting-edge topics

ISDC 2026 Sessions

AI & Space

BioSpace

Interplanetary

Interstellar

LaunchPad Talks

Living in Space

Many Roads to Space

Mars

Moon

Planetary Defense

Rising Stars

SEDS Cislunar Development

Space Ambassadors

Space Business

Space Elevators

Space Health

Space Policy

Space Settlement

Space Solar Power Symposium

Spaceports

Meet the Leaders of Space Exploration

ISDC 2026 Featured Speakers

Aarti Holla-Maini

Director, United Nations Office for Outer Space Affairs

01 Holla-Maini, Aarti

Jeffrey Manber

President of International and Space Stations, Voyager Technologies

02 Manber, Jeffrey

Michael López-Alegría

Chief Astronaut, Axiom Space

03 López-Alegría, Michael

Lindy Elkins-Tanton

Director, Space Sciences Laboratory at UC Berkeley

04 Elkins-Tanton, Lindy

Susan Kilrain

Former NASA Astronaut

05 Kilrain, Susan

Robert "Hoot" Gibson

Former NASA Chief Astronaut

06 Gibson, Robert “Hoot”

Dr. Steven Hawley

Former NASA Astronaut

07 Hawley, Dr. Steven

James L. Green

Senior Advisor, NASA Headquarters (Ret.)

08 Green, James L.

Melodie Yashar

Space Architect, Founder, AENARA

09 Yashar, Melodie

Dr. Gretchen Green

Astronaut, Explorer, Educator, The Expert Resource

10 Green, Dr. Gretchen

Dr. Pascal Lee

Planetary Scientist, Co-founder and Chairman, Mars Institute

Lee, Pascal

Collaboration turning vision into velocity.

From vision to voyage—powered by partnership.

"Being at this global space event was like getting a front-row seat to humanity's future."

- Nicole D.

"These are my people!

I’d been looking for a space conference near me forever!"

- Travis W.

OVER

Customers served! 0 + Past attendees

Trusted by Space Visionaries, Celebrated by Enthusiasts

Join the community & legacy of the 44th 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, and Dr. Mae Jemison
Our platform has driven legislation and inspired countless individuals to pursue STEM education.