Introduction:The Cosmological Argument is an a priori argument for the existence of God which has been around for centuries. Philosophical arguments aim to provide reasoned justifications for beliefs and theories. The Cosmological argument is one of the oldest and classical philosophical arguments which claims that the existence of God can be inferred from facts concerning causation, explanation, change, motion, contingency, dependency, or finitude with respect to the universe or some totality of objects. I will provide scientific evidence to critically evaluate the most famous argument of the Cosmological Argument the “First Cause” argument to justify this slippery slopeA popular claim called “First Cause” argument which is everything that exists has a cause or an explanation for its existence like the Universe for example. Plato and Aristotle although they often disagreed their is one principle of philosophy on which Plato and Aristotle agreed on and that was existence and the universe required a First Cause or Prime Mover - a god of some kind. I argue If everything requires a cause then what created God? I feel just because it is unknown in present time does not mean we wont discover more evidence supporting or countering claims like the origins of