Show Appearances
- May 2, 2021
Topic: Not of this World: An Emerging Picture of the UFO Phenomenon, Independently published, 2021
- September 6, 2020
Topic: Before Atlantis: New Evidence Suggesting the Existence of a Previous Technological Civilization on Earth , CreateSpace Independent Publishing Platform, 2018
- January 20, 2001
Topic: Analyses of New Photos of Face on Mars andNew Frontiers in Science Webpage
- December 6, 2000
Topic: Archeology on Mars
- March 27, 2000
Topic: New Cydonia Photo Opportunities
- June 10, 1999
Topic: Update on the New Cydonian Photos Taken by Mars Global Surveyor
- April 19, 1998
Topic: Preliminary Analysis Of The New Cydonia Photos Taken April 1998 By Mars Global Surveyor In Early April 1998
- March 15, 1998
Topic: The Martian Enigmas: The Face, Pyramids and Other Unusual Objects on Mars, North Atlantic Books, revised, 1997
- January 21, 1998
Topic: The Martian Enigmas: The Face, Pyramids And Other Unusual Objects On Mars, North Atlantic Books, revised, 1997
- June 9, 1996
Topic: Do Certain Martian Surface Features Suggest an Extraterrestrial Hypothesis?
- October 24, 1993
Topic: The Martian Enigmas, A Closer Look: The Face, Pyramids, and Other Unusual Objects on Mars, North Atlantic Books, 1991
