Monseigneur Georges Lemaître was the originator of the big bang theory.
http://en.wikipedia.org/wiki/Georges_Lema%C3%AEtre
Thanks, cipplecreek (I've been to Cripplecreek, too)
I found this link critiquing Cosmos - http://www.catholicnewsagency.com/news/historians-of-science-critique-new-cosmos-series/
But I will still watch it as I believe Science and Christianity are not incompatible