SETI’s Cold War Context
from Part II - Metaphysical and Social Influences on Astronomy and the Cosmic Worldview
Published online by Cambridge University Press: 17 July 2026
In October 1957, humans on Earth, for the first time, made a definitive detection of an artificial signal coming from outer space. 1 This signal originated from a small spacecraft, put in orbit around the planet by an intelligent technological civilization. The signal didn’t have an explicit message (amateur radio enthusiasts tracking its location would have simply heard a beeping sound from a carrier signal) but it nevertheless had a strong message to convey from the civilization that sent it.
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