By the mid-20th century, the Search for Extraterrestrial Intelligence would emerge as an established field of scientific research. The era witnessed the first experiments, and many of the theoretical and philosophical underpinnings of SETI were proposed during this time.
By the mid-20th century, the Search for Extraterrestrial Intelligence would emerge as an established field of scientific research.
A Brief-ish History of SETI. Part II: Ozma and the Drake Equation.
