About These Catholic Scientists
Fr. Georges Lemaître
Formulator of the "Big Bang" Theory, Belgian Priest
Fr. Georges Lemaître was a Belgian Catholic priest, astronomer, and physicist. Lemaître formulated the "Big Bang" theory of the origin of the universe, which he called his "hypothesis of the primeval atom" or the "Cosmic Egg." This theory was endorsed by Albert Einstein in 1931 and remains the prevailing cosmological model of the universe today.
Sr. Mary Kenneth Keller
Pioneer of Computer Science, Sister of Charity of the Blessed Virgin Mary
Sr. Mary Kenneth Keller was a Catholic religious sister, educator, and pioneer in computer science. She was the first woman to earn a Ph.D. in computer science in the United States and was an advocate for the involvement of women in computing. In 1958 Keller began working at Dartmouth College where she participated in the development of the BASIC programming language.
Fr. Gregor Mendel
Father of Modern Genetics, Augustinian Friar
Fr. Gregor Mendel was an Augustinian friar and abbot and the father of the modern science of genetics. Mendel's experiments between 1856 and 1863 established many of the rules of heredity. He coined the terms "recessive" and "dominant" in reference to certain traits, and also demonstrated the actions of invisible "factors" (now called genes) in predictably determining the traits of an organism.