Drake Equation T-Shirt for SETI

By SETI

$ 28.00

N = R* • fp • ne • fl • fi • fc • L. The Drake Equation was first presented by Frank Drake in 1961 and identifies specific factors thought to play a role in the development of extra-terrestrial civilizations. Get the tee and help spread the word that with the advancements in technology we are actually starting to put down numbers where once were only questions.