On September 22, 1979, a U.S. satellite detected a nuclear flash near the Prince Edward Islands off Antarctica.
Comprehensive Test Ban Treaty Organization
- Partial Nuclear Test Ban Treaty - October 10, 1963.
- Treaty on the Non-Proliferation of Nuclear Weapons - July 1, 1968
- Threshold Test Ban Treaty - July 3, 1974
- Vela Incident - September 22, 1979
- Comprehensive Nuclear-Test-Ban Treaty - September 10, 1996