3 ms·It would be another 20 years before we hear back from it. If at all.by jillesvangurp 5y agoIt would be another 20 years before we hear back from it. If at all.jeeeb 5y agoWouldn’t it be more like another 4.5 years to hear back? The probe itself doesn’t need to turn around and come back.nine_k 5y agoI'd say 24.5 years then. 20 years to come close enough, and 4.5 for the signal to come back at the speed of light.