Search the entire archive like a dossier index.

Canyon, Rhyolite, and the Satellite Listening State

CANYON and RHYOLITE mattered not because they were simply secret satellites, but because they changed the rhythm of interception. Earlier collection could be episodic. These systems pushed listening toward persistence. They helped create a world in which states no longer needed to be physically next to a signal source to hear it. They only needed the right orbit, the right ground station, the right processing chain, and the political secrecy to hold the system together.