There could be multiple alien probes in our star System now and we would not know it. Space, even in our star System, is huge and probes are, most likely, small.
We have huge problems locating, finding and tracking all the asteroids in our star system and we are still not sure if we have found all the planets, why should we be able to locate a alien probe?
There could be multiple alien probes in our star System now and we would not know it. Space, even in our star System, is huge and probes are, most likely, small. We have huge problems locating, finding and tracking all the asteroids in our star system and we are still not sure if we have found all the planets, why should we be able to locate a alien probe?