Sure, an individual Catholic can entertain the idea the earth is young, for a few seconds, before examining any
geology texts on the question…
The Popes from Pius XII forward have not entertained the idea the earth is young:
“Thirty years ago, on 22 November 1951, my predecessor Pope Pius XII…‘With the same clear and critical gaze with which it examines and judges the facts, it discerns and recognizes there the work of creative Omnipotence, whose strength raised up by the powerful fiat uttered billions of years ago by the creating Mind…’” (JPII on Pius XII, 10/3/1981 to the
Pontifical Academy of Sciences,
"Cosmology and Fundamental Physics")
“The Bible itself speaks to us of the origin of the universe and its make-up, not in order to provide us with a scientific treatise, but in order to state the correct relationships of man with God and with the universe. Sacred Scripture wishes simply to declare that the world was created by God, and in order to teach this truth it expresses itself in the terms of the cosmology in use at the time of the writer…the Bible…does not wish to teach how heaven was made but how one goes to heaven.” (JPII, ibid above)
“…the universe erupted 15 billion years ago in an explosion called the ‘Big Bang’ and has been expanding and cooling ever since… and about 10 billion years later the formation of planets. In our own solar system and on earth (formed about 4.5 billion years ago), the conditions have been favorable to the emergence of life…the first organism dwelt on this planet about 3.5 - 4 billion years ago.” (
International Theological Commission headed by Ratzinger / Benedict,
Communion and Stewardship, 2004)
“…science has long since disposed of the concepts that we have just now heard – the idea of a world that is completely comprehensible in terms of space and time, and the idea that creation was built up piece by piece over the course of seven [or six] days. Instead of this we now face measurements that transcend all comprehension. Today we hear of the Big Bang, which happened billions of years ago and with which the universe began its expansion – an expansion that continues to occur without interruption. And it was not in neat succession that the stars were hung and the green of the fields created; it was rather in complex ways and over vast periods of time that the earth and the universe were constructed as we now know them.” (Ratzinger / Benedict XVI,
In The Beginning…)
"Now there is another misunderstanding that is constantly found in the ongoing discussion, and I have to deal with it right here at the beginning. I refer to what is called ‘creationism.’ Nowadays the belief in a creator is automatically run together with ‘creationism.’ But in fact to believe in a creator is not the same as trying to understand the six days of creation literally, as six chronological days, and as trying to prove scientifically, with whatever means available, that the earth is 6000 years old. These attempts of certain Christians at taking the Bible absolutely literally, as if it made chronological and scientific statements – I have met defenders of this position who honestly strive to find scientific arguments for it – is called ‘fundamentalism.’ Or more exactly, within American Protestantism this view of the Christian faith originally called itself fundamentalism. Starting from the belief that the Bible is inspired by God, so that every word in it is immediately inspired by Him, the six days of creation are taken in a strict literal way. It is understandable that in the United States many people, using not only kinds of polemics but lawsuits as well, vehemently resist the teaching of creationism in the schools…
“The Catholic position on this is clear. St. Thomas says that ‘one should not try to defend the Christian faith with arguments that are so patently opposed to reason that the faith is made to look ridiculous.’ It is simply nonsense to say that the world is only 6000 years old. To try to prove this scientifically is what St. Thomas calls provoking the irrisio infidelium, the scorn of the unbelievers. It is not right to use such false arguments and to expose the faith to the scorn of unbelievers. This should suffice on the subject of ‘creationism’ and ‘fundamentalism’ for the entire remainder of this catechesis; what we want to say about it should be so clear that we do not have to return to the subject.” (Christoph Cardinal Schonborn,
Catechetical Lecture for 11/13/2005)
Phil P