The Cosmological Argument argues for the existence of an ultimate cause of our Universe, which in turn may be used to supplement an argument for the existence of a causer, or God. Here is what I have learned the Argument to be.

Some assumptions:

  1. The Universe has a beginning. (Big Bang, anyone?)
  2. Anything that has a beginning must have an independent cause.
Hence, the Universe has a cause. Next, does that cause need a cause? Does that cause need a cause (ad infinitum)? Eventually, there must be a cause which does not need a cause (probably another assumption), which can be accomplished by it not having a beginning. So, the Cosmological Argument not only says that there is an ultimate cause, but also that that ultimate cause is without a beginning. These are two key aspects of God (at least the Christian one). In addition, this helps clear up the issue of God needing a creator.