The Gauquelin planetary effects. This includes the extensive research of Michel Gauquelin, Francoise 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 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.