Yeah, which God are you referring to? Or do you just mean a general first cause?
A first cause is 'possible' although there are plenty of other explanations for the existence of the universe & the first cause itself would still require explanation.
As for the idea of a personal God as worshipped by many religions, the answer is a pretty obvious no.
However, higher lifeforms? Possibly... but who knows. Non-corporial lifeforms? Once again, possibly, but pretty unlikely & not really worth investigating yet scientifically, in my opinion.