Science isn't atheist at all

The word atheism tells all about its ideology, which says the one who follow it, believe that there is no God, and its all man made concept, by justifying and taking a backbone of science, whereas science isn't atheist at all, however we can say its agnositic at some aspects, but beleiving and having full faith in No God, is very hillarious, these are same people who say or believe that "aliens may exist we aint sure about it"