The Debunker's Domain

Robert Sheaffer - Skeptical to the Max

Mr. Skeptic at Stonehenge

These pages are frequently updated with new material
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Last update Sept. 3, 2018

A Symbol of Freedom - hated by totalitarians and their admirers around the world

Robert's latest book "Bad UFOs"


My new book Bad UFOs is now available! Click this link for more information  Enter the Discount Code Y8ZHYK6Y to get 10% off the list price!  
New files & updates to my Historical UFO page.  Never-before seen letters discussing the Hill "UFO Abduction" between Dr. Benjamin Simon, Philip J. Klass, Betty Hill, and myself. Dr. Simon strongly states his opinion to Klass that the abduction story was a fantasy, and attempts to justify not stating this forthwith earlier. Betty Hill tries to convince Klass that her abduction story is true. Includes the skeptical article I wrote about the Hill case in Official UFO magazine, August, 1976. (added Dec. 22. 2015. 48 pages, 14 MB).
Now on the Blog, . Leslie Kean's new UFO Video from Chile; Randle Recanting Roswell?; Kenneth Arnold and the Pelicans.
New: - Version 12 of my free Windows real-time astronomy software RTGUI, with an enhanced user interface to make it easier to run on a Windows Tablet. It runs on any Windows PC or Tablet  - very convenient to taked it out in  the field! It recommends the "best" sky objects to observe, based on your location and time. It now can download positions for any asteroid or comet. Find objects rapidly, have your telescope easily "Goto" them, get an 'instant Skychart'.

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Hello, this is Robert Sheaffer. I'm an author, a free-lance writer, and skeptical investigator of all manner of bogus claims. In real life, I have been working as a data communications engineer in the Silicon Valley, although I'm now living near San Diego. I have been a fellow of the Committee for Skeptical Inquiry (CSI - formerly CSICOP ) - since 1977. I have been a regular contributor and columnist for their magazine, The Skeptical Inquirer, since its second issue of publication (Spring/Summer, 1977). I have also been a member of Mensa for over twenty years.

I'm an equal-opportunity debunker, refuting whatever nonsense, in my judgment, stands in the greatest need of refuting, no matter from what source it may come, no matter how privileged, esteemed, or sacrosanct. Sacred cows, after all, make the best hamburger. As H. L. Mencken wrote in Prejudices (Fourth Series),

The liberation of the human mind has never been furthered by such learned dunderheads [priests and pedants]; it has been furthered by gay fellows who heaved dead cats into sanctuaries and then went roistering down the highways of the world, proving to all men that doubt, after all, was safe -- that the god in the sanctuary was finite in his power, and hence a fraud. One horse-laugh is worth ten thousand syllogisms. It is not only more effective; it is also vastly more intelligent."
Please join me as we heave a few dead cats into the sanctuaries of the world, and demonstrate that at least some Emperors (and Empresses) have no clothes.



Skeptical Resources

My Books, which can be ordered directly from AMAZON.COM using links from this site, plus other published writings.

Skeptical Information on UFOs - One of my areas of specialization.

Exposing  Feminist Ms-Information.

Refuting Creationism, Revisionism, and other Right-Wing Falsehoods, Distortions, and Superstitions.

Conspiracies! - find out how they have secretly been plotting against you! (Of course, "they" can be any group you don't like).


Miscellaneous Skeptical Resources

Astronomy and Visual Observations of Earth Satellites.



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Entire contents Copyright 1996-2018 by Robert Sheaffer


Visit Robert's Home Page.

Robert's Page of Singing and Opera.

Robert has appeared on numerous TV and radio shows (most recently on "UFO Hot Spots" on the History Channel), and is available to lecture on the above subjects to your college or other organization.

If you have any comments or suggestions, please send me email

Visitors since Feb. 10, 2005:

Remember: a thing cannot be "debunked" unless it is filled with bunk to begin with!