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The Air Force Digital Century Series: Beyond the Buzzwords
- Air Dominance and Long-Range Strike
  Focuses on issues relating to air power and power projection.
- Civil and Commercial Space
  Assesses NASA, other civil agencies, and private space companies.
- Space Security
  Addresses domestic and international security concerns in space.
Resources
Resources

Learn the Basics

Counterspace Weapons 101
- Aerospace 101
  Explore fundamental concepts in the air and space domains.
- Data Repository
  Discover Aerospace Security’s interactive data and resources.
- Document Library
  Search for primary source documents from the history of aerospace policy.
Events
Events

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Understanding Space Security
- Public Events
  Register for upcoming Aerospace Security events.
- Professional Development Course
  New course offering: Understanding Space Security.
About

Author: Thomas G. Roberts

Thomas G. Roberts is an adjunct fellow with the CSIS Aerospace Security Project, a graduate researcher at the Massachusetts Institute of Technology (MIT) Space Systems Laboratory, and an SM candidate in MIT’s Department of Aeronautics and Astronautics and Technology and Policy Program. His research interests include orbital mechanics, astrodynamics, and international space policy. @ThomasGzRoberts

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Space Threat Assessment 2020

By Todd Harrison, Kaitlyn Johnson, Thomas G. Roberts, Tyler Way, Makena Young

PublishedMarch 30, 2020

An interactive summary of Space Threat Assessment 2020, a featured report from the CSIS Aerospace Security Project.

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Space Threat Assessment 2019

By Todd Harrison, Kaitlyn Johnson, Thomas G. Roberts, Alexandra Coultrup, Madison Bergethon

PublishedApril 4, 2019

An interactive summary of Space Threat Assessment 2019, a featured report from the CSIS Aerospace Security Project.

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Report: Space Threat Assessment 2020

By Todd Harrison, Kaitlyn Johnson, Thomas G. Roberts, Tyler Way, Makena Young

PublishedMarch 30, 2020

Space Threat Assessment 2020 aggregates and analyzes publicly available information on the counterspace capabilities of other nations.

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Unusual Behavior in GEO: SJ-17

Last UpdatedMarch 30, 2020

Unlike most objects in the geostationary belt, Chinese satellite SJ-17 has made a series of orbital maneuvers, widely varying its position in GEO. Use this interactive data repository to discover SJ-17’s movements over time.

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Unusual Behavior in GEO: Luch (Olymp-K)

Last UpdatedMarch 30, 2020

Unlike most objects in the geostationary belt, Russian satellite Olymp-K has made a series of orbital maneuvers, widely varying its position in GEO. Use this interactive data repository to discover Olymp-K’s movements over time.

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Popular Orbits 101

Last UpdatedMarch 30, 2020

Not all satellite orbits are created equal. This 101 describes the most popular orbital regimes and their benefits and drawbacks.

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International Astronaut Database

Last UpdatedFebruary 6, 2020

Search the CSIS Aerospace Security International Astronaut Database for an individual astronaut’s name, country of origin, gender, and flight records.

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Spaceports of the World

Last UpdatedJanuary 8, 2020

Where are the world’s most active spaceports? Use this data repository to learn more about the history of ground-based space launch across the globe.

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Report: Space Threat Assessment 2019

By Todd Harrison, Kaitlyn Johnson, Thomas G. Roberts, Madison Bergethon, Alexandra Coultrup

PublishedApril 4, 2019

Download a PDF of Space Threat Assessment 2019 a new featured report from the CSIS Aerospace Security Project. Space Threat Assessment 2019 reviews the open-source information available on the counterspace capabilities that can threaten U.S. space systems.

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History of the NASA Budget

Last UpdatedJune 4, 2019

This interactive displays historical NASA budgets.