As a Catholic who’s done his share of science, including publishing in medical journals, this debate is one I’ve been holding with myself for ages.
While I believe that science does tell us a lot about the world, I think most scientists would agree that we do not have a “Grand Unified Theory of Everything”. Most attempts to achieve this, even in physical science, end up multiplying complexities to a point that would make William of Ockham cry “Uncle!” (the “multiverse”, 11-dimensional supersymmetrical string theory, “M”-theory), etc.
In biology, scientific findings about evolution and speciation have been sadly blended with ideology and an at times complete rejection of the role of God in creation or in the origin of life. This makes most “evolutionary theories” (and psychiatry, my own field, is full of them) doubtful to begin with.
Even if we could fix the problems with existing physical or biological theories, they would not tell us about how the universe came into being - how it was created. Attributing this to “random quantum fluctuations” is a cop-out - especially given the fact that, in the space of all possible universes, the odds that
this one was created by chance is ridiculously small. (A calculation to this effect is given by Roger Penrose - a Platonist and atheist, but forced to call the facts as they lie - in his book “The Emperor’s New Mind”.
Bible “scholarship” (the quotes denote sarcasm

) adds to the confusion, by promoting the false notion that Genesis 1-2 is derived from Babylonian cosmology and myth. While there are some similarities, we should ask ourselves in which direction the influence flowed: it is equally probable that, at the time of the “tower of Babel” incident (which has good support from linguistics - many of our spoken languages today are derived from a common “ancestor”, sometimes called “Proto-Indo-European”) - corrupted versions of the original (inspired) cosmology survived in Babylonian culture and civilization.
Should the six days of creation be viewed figuratively? That is a difficult question, but I believe that the seeds of an answer can be found as follows:
We often hear a figure being quoted (such as 14.2 billion years) for the age of the universe, based on various considerations from physics. All these make certain fundamental assumptions - the main one being that the “laws of physics” are immutable and have never changed. While this is an attractive proposition (as it accords with belief in an unchanging God), there is some evidence to suggest that this is not the case - for example, some scientists believe that, at a much earlier point in time, Newton’s law of gravitation did not hold. Remember, “God rested on the seventh day” - meaning that at this point (after 6 days),
and not earlier, we could assume that these “laws of physics” were fixed
If this is the case - and each day of creation involves God, in his role as Sovereign and Creator, moulding Nature as He sees fit - then the assumption of “immutability of the laws of physics” (and many calculations of the age of the universe) have to be revised accordingly.
Second, recall Genesis 1:2: “and the earth was void and empty” - the Hebrew words “tohu” and “bohu” mean “trackless waste” and “emptiness” (New Jerusalem Bible, footnote). We could conceive of this “void” state as consisting of
information about each and every particle in the universe, a creation
ex nihilo (in the manner of a “quantum state vector” for an “entangled state” representing the whole universe), whose positions were then fixed by God - bringing order (that is, “reducing” the vector) and leading to the successive epochs or days of creation. As the created world grew in order and complexity under God’s sovereign guidance, God successively created the necessary laws of physics, chemistry and biology, leading to His creation of plant and animal life, and finally of man. (This would not imply “theistic evolution”, as Genesis teaches that God created the species individually, but something more like intelligent design.)
Were these literal days? The Catholic Encyclopedia (1910) says that we are free to speculate otherwise, as long as we do not stray from the truth that God is the Creator of the World. But my opinions - based on the above speculations, but also on faith - is that, yes, they are. 6 days was probably the time it took for the above process to take place - for God to “fix” every facet of creation, from light (here meaning the basic forces and particles of the material world) to man. Because of the properties of matter (including “natural constants” such as the speed of light), the actual natural processes may have taken more than that “in human time” - but the actual process of Divine creation took 6 days.
(An example, if the above is too confusing: It could take me an hour to write a computer programme that would print out pi to 2,000,000,000 decimal places - but the computer would spend thousands of years carrying it out, because of limitations on the speed of information transfer. Should I then say that I took “thousands of years” to “create” a program to compute pi, or one hour?)
Of course, all these are the speculations of a medical man whose knowledge of physics is very much at the basic level. But I do believe that - when we have a more complete understanding of science - we may be able to reconcile the contradictions. And if we cannot achieve this, we must at least make every honest attempt - using the principles of our faith, as well as those of human reason - to do so.