Space and Aerospace

With the advent of atmospheric weapons and the creation of the Space Force as the newest branch of the U.S. military, space has never been more crucial to national security. CSIS examines the technological, budgetary, and policy issues inherent to the space domain.

Photo: aire images/Getty Images

Photo: aire images/Getty Images

NASA Changes Course on Commercial Space Stations

NASA is shifting (again) it's plans to maintain a human presence in low Earth orbit, making changes to how it will replace the International Space Station. These changes will add costs and delays. They are also a departure from NASA efforts to use as-a-service models to lay the foundations of a future space economy.

Commentary by Clayton Swope — May 27, 2026

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Kari Bingen

Kari A. Bingen

Director, Aerospace Security Project and Senior Fellow, Defense and Security Department
Tom Karako

Tom Karako

Director, Missile Defense Project and Senior Fellow, Defense and Security Department
Alek Jovovic

Alek Jovovic

Deputy Director, Center for the Industrial Base and Senior Fellow, Defense and Security Department
Clayton Swope

Clayton Swope

Deputy Director, Aerospace Security Project and Senior Fellow, Defense and Security Department
Benjamin Jensen

Benjamin Jensen

Director, Futures Lab and Senior Fellow, Defense and Security Department
Lauryn Williams

Lauryn Williams

Deputy Director and Senior Fellow, Strategic Technologies Program

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NASA Changes Course on Commercial Space Stations

NASA is shifting (again) it's plans to maintain a human presence in low Earth orbit, making changes to how it will replace the International Space Station. These changes will add costs and delays. They are also a departure from NASA efforts to use as-a-service models to lay the foundations of a future space economy.

Commentary by Clayton Swope — May 27, 2026

Warfighting and War Winning in Space

Please join the CSIS Defense and Security Department for a conversation on warfighting in space and its implications for deterrence and strategic stability. 

Event — May 26, 2026

What Are the Biggest Space Threats in 2026?

Please join the Aerospace Security Project and Secure World Foundation for a discussion on the evolving space threat environment and the latest trends in global counterspace capabilities.

Event — May 22, 2026

Can Space Be Disrupted Like the Strait of Hormuz?

Like the Strait of Hormuz, space is a chokepoint that can be disrupted. That disruption can be achieved and sustained without having domain superiority, and that, once disrupted, it is hard to return things back to the old normal.

Commentary by Clayton Swope — May 1, 2026

Unleashing Market Forces for Spectrum Use in Space

Updates to FCC rules limiting transmit power for low Earth orbit satellite networks are a positive step towards optimizing the efficiency and productivity of spectrum—but there is a long way to go to fully unleash market forces for spectrum use in space.

Commentary by Clayton Swope — April 23, 2026