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  2. US signals intelligence in the Cold War - Wikipedia

    en.wikipedia.org/wiki/US_signals_intelligence_in...

    To obtain some autonomy in SIGINT, while simultaneously strengthening its role in the UKUSA Agreement, Britain planned to launch its own SIGINT satellite, codenamed Zircon. Proposed in 1983 to be in a geosynchronous orbit over the Soviet Union, it was cancelled, principally on grounds of cost, in 1987.

  3. Aquacade (satellite) - Wikipedia

    en.wikipedia.org/wiki/Aquacade_(satellite)

    The satellites had a mass of approximately 700 kg and operated in near-geosynchronous orbits over the Middle East. Signals were relayed to a remote NSA Earth station in Australia, Pine Gap, out of range of Soviet detection. From there, they would be encrypted and sent via another satellite to the NSA's headquarters at Fort Meade for analysis. [3]

  4. Zircon (satellite) - Wikipedia

    en.wikipedia.org/wiki/Zircon_(satellite)

    Zircon was the codename for a British signals intelligence satellite, designed to intercept radio and other signals from the USSR, Europe and other areas. It was intended to be launched in 1988 on a NASA space shuttle. However, the project was cancelled in 1987 because of its cost.

  5. Orion (satellite) - Wikipedia

    en.wikipedia.org/wiki/Orion_(satellite)

    Orion, also known as Mentor or Advanced Orion, [1] is a class of United States spy satellites that collect signals intelligence (SIGINT) from space. Operated by the National Reconnaissance Office (NRO) and developed with input from the Central Intelligence Agency (CIA), eight have been launched from Cape Canaveral on Titan IV and Delta IV ...

  6. Spy satellite photos reveal hundreds of long-lost Roman forts ...

    www.aol.com/cold-war-spy-satellite-photos...

    Declassified photos taken by Cold War-era spy satellites have revealed hundreds of previously unknown Roman-era forts, in what is now Iraq and Syria, a new study found.

  7. Early warning satellite - Wikipedia

    en.wikipedia.org/wiki/Early_warning_satellite

    An early warning satellite is a satellite designed to rapidly identify ballistic missile launches and thus enable defensive military action. This type of satellite was developed during the Cold War and later became a component of missile defense systems. The United States, Russia and China have a constellation of early warning satellites.

  8. Signals intelligence - Wikipedia

    en.wikipedia.org/wiki/Signals_intelligence

    Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of signals, whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT). [1]

  9. Pine Gap - Wikipedia

    en.wikipedia.org/wiki/Pine_Gap

    In 2004, the base began operating a new satellite system known as the Space-Based Infrared System, which is a vital element of US missile defence. [10] Since the end of the Cold War, the station has mainly been employed to intercept and record weapons and communications signals from countries in Asia, such as China and North Korea.