Skip to main content

Carl Sagan on the Existence of Extraterrestrials

653,948 Views

647 Questions Answered

Best of Web

Let’s Begin…

Carl Sagan discusses the incomprehensible vastness of the universe, the wonder of our own place in it all, and the science behind understanding the likelihood of the existence of extraterrestrial beings. 
Executive Producer David Gerlach
Director Kirill Yeretsky
Series Producer Amy Drozdowska

What are the three reasons why Carl Sagan believes in the likely existence of extraterrestrial beings?

About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

More from Exploring Theories