Recent Articles and Letters
Written by Our Members
and Others

January 24, 2016

Why Not Use a Plane? by Frank Legge and Ken Jenkins

April 10, 2014

Science, Activism, and the Pentagon Debate by Frank Legge

October 24, 2013
Released April 10, 2014

Letter to Massimo Mazzucco by David Chandler, Frank Legge, and John D. Wyndham

April 24, 2013

Response to Rachel Maddow by David Chandler

July 6, 2011

Book Review: "Among the Truthers" by William Willers

May 10, 2011

Responses to questions regarding thermite, nanothermite and conventional explosives used in the WTC destruction by Steven Jones,

January 19, 2011
Released April 15, 2011

Letters to John P. Holdren, the Department of Commerce, the Union of Concerned Scientists, and the National Science Foundation by members of Scientists. Note: In these copies, the sender's address has been replaced by Scientists' PO Box address.

March 19, 2011

An Open Letter to Bill Moyers by William Willers and others. The letter was in response to a speech by Bill Moyers at the History Makers 2011 convention on January 27, 2011, in New York City.

March 07, 2011

A Scientific Theory of the WTC 7 Collapse by Michael Fullerton, Foreign Policy Journal.

February 22, 2011

Letter to the Canadian Minister of Public Safety by Kip Warner. Responses to this letter by officials and others can also be seen at this location.

November 18, 2010

Evidence for Informed Trading on the Attacks of September 11 by Kevin Ryan, Foreign Policy Journal.

September 15, 2010

Letter to the Department of Commerce by Timothy E. Eastman.


Welcome to our website and Home page. If you are new to the findings of independent, scientific research on the events of September 11, 2001 (9/11), please begin by clicking Introduction.

ANNOUNCEMENT: A new item has been added to the Recent Articles and Letters section on this page: Why Not Use a Plane? by Frank Legge and Ken Jenkins, January 24, 2016.

Pentagon Puzzle

The Pentagon Plane Puzzle

Members of Scientists and Others Publish New Pentagon Research

March 22, 2016 and April 29, 2016

The new research consists of:

(a) a video The Pentagon Plane Puzzle by Ken Jenkins on the Pentagon witnesses,

(b) a talk Going Beyond Speculation: A Scientific Look at the Pentagon Evidence by David Chandler.

Ken Jenkins

Ken Jenkins

(c) a paper The Pentagon Event: The Honegger Hypothesis Refuted by authors Victoria Ashley, David Chandler, Jonathan H. Cole, Jim Hoffman, Ken Jenkins, Frank Legge, and John D. Wyndham.

Except for Victoria Ashley and Jonathan H. Cole (Scholars for 9/11 Truth and Justice), all of the foregoing individuals are members of Scientists for 9/11 Truth.

(a) The Pentagon Plane Puzzle

Each year around the September 11th anniversary of the 9/11 event the Northern California 9/11 Truth Alliance hosts a Film Festival. The 2015 Festival in Oakland, California included a video by Ken Jenkins that presented the testimonies of Pentagon eyewitnesses given to news media shortly after the event. The narrator points out that, in an event seen by multiple witnesses, the most accurate description of the event is obtained by examining "the common threads and recurring words" used by the witnesses. The observation common to the great majority of the of the Pentagon witness testimonies given in the video is that on 9/11 a large plane, identified by some as a Boeing 757, flew toward and impacted the Pentagon west wall.

David Chandler

Going Beyond Speculation
by David Chandler

(b) Going Beyond Speculation: A Scientific Look at the Pentagon Evidence

This is a talk on the Pentagon by David Chandler that was also given at the 2015 Film Festival in Oakland. The talk was video-taped by Ken Jenkins who added supporting material before presenting it to the public along with his Pentagon Plane Puzzle video. Chandler's talk begins at 26:40 minutes in the video with a review of World Trade Center research that points to the controlled demolition of three buildings, the Twin Towers (WTC1/2) and Building 7 (WTC7) on September 11, 2001. Chandler then provides a compelling overview of the Pentagon evidence that points to impact by a large plane, a Boeing 757-200 and most probably flight AA 77. Chandler's emphasis is on use of the scientific method to draw the right conclusions from the eyewitness and physical evidence.

Plane Damage Path

Plane Damage Path
Clipped tree, downed light poles, trailer/concrete wall gouges,
Impact hole, broken, bent and abraded columns, C ring exit hole,
Debris strewn in A&E driveway including plane parts.

(c) The Pentagon Event: The Honegger Hypothesis Refuted

The new paper is titled, "The Pentagon Event: The Honegger Hypothesis Refuted," by Victoria Ashley, David Chandler, Jonathan H. Cole, James Hoffman, Ken Jenkins, Frank Legge, and John D. Wyndham. The paper can be found in the Pentagon section of the Scientific Method 9/11 website or directly at this location.

Honegger's hypothesis is that no plane impacted the Pentagon on September 11, 2001, and that pre-planted explosives caused all the deaths and damage. Honegger also postulates that a large "white" plane was destroyed outside the Pentagon west wall without causing any damage to the wall.

The authors of the above paper refute Honegger's hypothesis and show that the physical, eyewitness, radar, and FDR data, plus other data, all support impact by a large silver plane, a Boeing 757, and most probably American Airlines Flight 77, as the main cause of all the deaths and damage.

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