This image provided byNASA/JPL-Caltech shows as John Casani, Voyager project manager in 1977, holding a small Dacron flag that was folded and sewed into the thermal blankets of the Voyager spacecraft before they launched, below him lie the Golden Record, left, and its cover, right, in the background stands Voyager 2 before it headed to the launch pad, Cape Canaveral, Fla., Aug. 4, 1977. (NASA/JPL-Caltech via AP)