supreme god head never under goes any changes irre - Since our material vision unable to see many material objects in this world. But, to prove god we need to go beyond material science. What we call science today, is actually not a science. The true meaning of word science is always constant and never changes.But, today who are claiming science is actually not a science whatsoever. Because everyday new opionions. Can anyone see the elctric power which is material object. You can't because as i mentioned above you can't even see many material objects through our material vision and you can only perceive it.Thanks to lord krishna for teaching this in bhagavad gita. Simalarly we can only perceive or see god by the mercy.