• The Gauquelin planetary effects. This includes the extensive research of Michel Gauquelin, Françoise Gauquelin and more recent work by Suitbert Ertel, Arno Müller and others.

• Coming soon: "A Brief Memo on LST Effects"

• New links to related sites of interest: Updated November 2023

• The Gauquelin Data online

• Software for planetary research.

• Some implications of the "Gauquelin planetary effects".
  • Science, Astrology and the Gauquelin Planetary Effects.
  • The Rise and Fall of Eminence in Semantic Space

• The "Mars effect" controversy:
  • A brief chronology of the controversy
  • A review of The 'Mars Effect', A French Test of Over 1,000 Sports Champions, a skeptic book outlining a study of the Mars effect that took 14 years from start to finish, violating most and perhaps all points of the protocol agreed to Gauquelin and its board.
  • Information about The Tenacious Mars Effect, a book co-authored by Suitbert Ertel and Kenneth Irving.
  • An expanded version of an article by Ertel and Irving that appeared in the Skeptical Inquirer.