My thoughts would be that the Bible implies that there was never a period of time where nothing existed, and that God was there before nothing had a chance to exist.
then prove it
the difference between christian and astronomy is that in astronomy you can actually look up in space and see a process's going on(examples, stars being born, supernovas, black holes, nebula's etc.), if the sky is clear enough and if you have a good telescope(if you know where/when to look), but you can't look at space and say*there is god, or god made that etc.*
if you don't trust me you can even get a telescope your self and look at space
Hey Focus. The Bible says in John 1:1 "In the beginning was the Word, and the Word was with God, and the Word was God." It would be impossible for any christian to prove God without using the word of God (Bible), because it says that the word of God is God. Also, it says that God was here from the beginning.
at the beginning of the world(around 4.55 billion years ago) there was no life, no air, no water, no moon, but a rocky planet with an endless ocean with lava, it was first when a planet that hit the earth called thea(or some like that) the moon would be born. http://www.youtube.com/watch?v=RQm6N60bneo
this video shows a good example of our planet's history and what i was talking about, and at the same time proves that there was no god that created earth and that he wasn't there at the beginning (which also mean that there doesn't exist any god)
also, on an other topic(kinda), why would a god create 12-14 humans species and then wipe 13 of them completely out?
if a god actually exist and did that, then he is quite evil and selfish if you ask me
also, this isn't personal in any way
