The Sagan Conspiracy: NASA's Untold Plot to Suppress The People's Scientist's Theory of Ancient Aliens

Mainstream SETI scientists and ancient alien theorists don't agree on much, but one opinion they share is that the undisputed authority on the possibility of alien existence was the late Carl Sagan (1934—1996), whose voluminous writings on the subject have had a profound influence on ETI research.

But how many Carl Sagan fans know that while the renowned scientist was at Stanford University, he produced a controversial paper, funded by a NASA research grant, that concludes ancient alien inte...