Is it possible that there is life in the Milky Way? Or has that already been disproven? If it is possible, what are our current limitations, based on physics/technology, in discovering that life?

I am sure this has been asked before but I am new here. Mainly what I am asking is: what is the best possible way to discover other life? Based on physics, it seems likely that the universe is full of life, but is that actually possible, and could it exist within the Milky Way? If so, what technolo