I know some of my Christian friends and readers may have difficulties with some aspects of this interesting topic as it does raise some awkward questions particularly to those who take the Bible's story of creation very literally but I still find this topic fascinating as an expression of an eternal God at work in the world.
Finally I find it a little hard to believe in 'young earth' theories as an interpretation of Genesis given the length of time it has taken for the light from the nearest star to reach us. After all ''a thousand ages in Thy sight are but an evening gone''.