Are We Alone? Scientific American

Why Do We Assume Extraterrestrials Might Want to Visit Us?

Professor Abraham (Avi) Loeb

Are We Alone? Scientific American, alone

Alone in the Crowd Harvard Medicine Magazine, alone

Is Man Alone in Space?

Scientific American 1921-06-11: Vol 124 Iss 24 : Free Download, Borrow, and Streaming : Internet Archive

Professor Abraham (Avi) Loeb

Alone' Review: Catch Her if You Can - The New York Times, alone

Are We Alone In The Universe? : Consider This from NPR : NPR

File:Scientific American - Series 1 - Volume 002 - Issue 49.pdf - Wikimedia Commons

Are We Alone? Drake Equation Graphic Tee – Cognitive Surplus

Are we alone? The Lorne Trottier 2014 public science symposium