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Space Threat Assessment 2025

Welcome to the 2025 Space Threat Assessment by the Aerospace Security Project. This resource for policymakers and the public leverages open-source information to assess key developments in foreign counterspace weapons. Drawing on eight years of collected data and analyses, this report describes trends in the development, testing, and use of counterspace weapons and enables readers…

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The Future of Military Power Is Space Power

Released on April 4, 2025, the Space Force Doctrine Document 1 (SFDD-1) articulates the raison d’etre and establishes a common lexicon for U.S. military space power. It spells out the what, when, where, why, and how of the Space Force and its role in the joint force today. But there is also a need to look well beyond the present, using as much…

Next Steps for the U.S.-Japan Space Alliance

Japan’s heavy investment in space capabilities, coupled with the importance of space in supporting U.S. power projection in the region, has contributed to space becoming a strategic pillar of the U.S.-Japan alliance in recent years. The importance of the bilateral space partnership was highlighted recently in a joint statement from the February 2025 meeting of President Trump…

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Aerospace 101

Discover the air and space domains with Aerospace 101, an article series from Aerospace Security experts. Aerospace 101 articles introduce technical concepts in aerospace engineering, aerospace security, and space policy with short introductions, key facts, and examples.

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Visualizing Data

The Aerospace Security data repository is an archive of data resources featured in published reports and analyses. Search the archive for interactive data visualizations, informational graphics, and raw data.

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