
Celebrating Priesthood – Monsignor Georges Lemaître
1.73k

After the War Georges focused his energies on his study of mathematics and physics. Whilst writing his doctorate, he realised that he was being called by God to be a priest. He began his studies for the priesthood and was ordained in 1923. His superiors encouraged his obvious scientific talents and sent him to study astronomy at the University of Cambridge, where he spent a year at St Edmund’s House (now St Edmund’s College, which happens to be next door to the Dominican Priory in Cambridge). He returned to Leuven to lecture in 1925 and two years later gained international fame through presenting the new idea of an expanding universe. This challenged the established finite-size static universe model proposed by Einstein. Einstein refuted Lemaître’s theory, saying “your math is correct, but your physics is abominable”

This proposal met skepticism from his fellow scientists at the time. Eddington found Lemaître’s notion unpleasant. Einstein found it suspect because he deemed it unjustifiable from a physical point of view. On the other hand, Einstein encouraged Lemaître to look into the possibility of models of non-isotropic expansion, so it’s clear he was not altogether dismissive of the concept. He also appreciated Lemaître’s argument that a static, Einsteinian model of the universe could not be sustained indefinitely into the past. Between 1930 and 1933 Lemaître developed and debated his findings. New investigations into cosmic rays and changes within the cosmological consensus resulted in the Belgian priest being vindicated, with Einstein declaring his theory to be “the most beautiful and satisfactory explanation of creation to which I have ever listened.”
Georges Lemaître died in 1966, highly regarded and honoured as a scientist. He is an example of how reason and revelation complement and enrich each other in the honest pursuit of truth. As a priest he demonstrated the importance of engaging with the world and secular society. Who knows how many scientists and students kept or found their faith through his example?