I am not a native English speaker so probably I will make grammatical mistakes, I am sorry for that . I think that it is very probable that there is : some signals in the universe that we cannot detect with our five senses and all sensors and machines that humanity created, And maybe there is a sixth sense or a seventh that some aliens have !! I think although if we suppose that our minds are perfect and able to analyze all information received, they will never give us good explanations because we didn’t give them all necessary signals via our senses. some others forces than the four discovered by science that are maybe not applied to masses and charges but something else or maybe it is impossible for us with our capacities to realize their effect on things . My question is why we are not modest about our knowledge? Why we teach our children that science is perfect? I think that Science is not reality, it concern humans only, those beings that have five senses a mind and a memory, it is a way for humans to analyze the universe that encounter him, and maybe is meaningful only for him.