Since its founding in 1891, many people have passed through the doors of the Vatican Observatory.  A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints. For the past few weeks, we have been highlighting visitors who came on the occasion of the first General Assembly of the International Astronomical Union.    Today’s visitors all came on May 10, 1922. They are Jacques Liouville, Jules Baillaud, Oliver Justin-Lee, and Abbé Chauve-Bertrand. Jacques Liouville Next to his name, Dr. Jacques Liouville (1879-1960) wrote, “Directeur de’Institut Scientifique Chérifien (Maroc)” (“Director of the Chérifien Scientific Institute (Morocco)”). Dr. Liouville was the first director of the Chérifien Institute, which he directed from 1920 until 1937.  His areas of specialty were medicine and marine biology. He was also an explorer who participated in two antarctic expeditions in 1908 and 1910. These expeditions resulted in a study of Antarctic cetaceans. He was the son of the prominent French politician … Continue reading →