We return to listener questions on whether Hawking was right or wrong to dismiss God as a cause of the universe in his new book "The Grand Design".
John Polkinghorne is a theoretical physicist and Anglican Priest in Cambridge.  Hugh Ross is a Christian physicist and founder of "Reasons to Believe".
They tackle questions on whether the multiverse is really an alternative to God in explaining our fine-tuned universe. What physicists really mean when they say the universe came into being "out of nothing", and whether the massive size of the universe makes our existence insignificant.
For Hugh Ross see http://www.reasons.org/resources
For John Polkinghorne see http://www.polkinghorne.net/
For more debates and discussions visit http://www.premier.org.uk/unbelievable or get the podcast http://ondemand.premier.org.uk/unbelievable/AudioFeed.aspx or via Itunes
Join the discussion at the "Unbelievable?" group of the Premier Community http://www.premiercommunity.org.uk/group/unbelievable