cosmological argument

The cosmological argument is an argument for the existence of a First Cause to the universe. This First Cause is claimed by theists to be their God. The argument is usually stated as such:

Of course the theist concludes that since the universe has a cause, it must have been God. During the Scholastic era (1100-1500) St Thomas Aquinas created a predecessor to the cosmological argument; theArgument from Contingency. This argument builds on Aristotle's idea that "There must be something to explain why the Universe exists. Since the Universe could, under different circumstances, conceivably not exist (contingency), its existence must have a cause – not merely another contingent thing, but something that exists by necessity." In other words, even if the Universe has always existed, it still owes its existence to an Uncaused Cause,

refutation :

This is by far one of the more difficult arguments to counter. I guess the best response would be that we currently don't have the answer, but that doesn't mean science won't figure it out, and just because it's currently unknown doesn't mean God did it. There was a time when we didn't understand what caused lightening, so we attributed it to Thor, Jupiter, and many other gods. Lawrence Krauss has been publicizing the idea of "A Universe From Nothing." Basically, quantum fluctuations which pop in and out of existence account for most of the mass and energy, and yes, scientifically, something can come from nothing.