Drake equation

Proper noun

the Drake equation

1. A formula for calculating the probability of civilizations existing elsewhere in the Milky Way galaxy and of their ability to communicate with Earth.
   • Arguably the most challenging estimation problem is how many planets there could be in the universe with life forms like those on Earth. A conference in 1961 at the National Radio Astronomy Observatory in Green Bank, West Virginia, was the starting point for the search for extraterrestrial...2010, Göran Grimvall, “Chapter 1: Numbers”, in Quantify! A Crash Course in Smart Thinking, Johns Hopkins University Press, →ISBN