what if life exists everywhere we are just incapable of detecting it? All we know for sure that there is none on the moon, and soon we will make that claim for

what if life exists everywhere we are just incapable of detecting it? All we know for sure that there is none on the moon, and soon we will make that claim for Mars, after turning a couple of rocks. If there is life with the same technologies to us sending some beacon signal, what's the odd that we get it?