I wonder if there is any potential direct observation possible of them from humans after the radio becomes too weak. Could we build a laser powerful enough to g

I wonder if there is any potential direct observation possible of them from humans after the radio becomes too weak. Could we build a laser powerful enough to get a reflect back that we could measure, with some kind of incredibly large reflector/receiver? I doubt they have 'reflectors' back. Did you know they put reflectors on the moon that we still use for laser 'range finding' today.