For almost 49 years, Voyager 1 has been speeding away from Earth, beaming data back to NASA researchers, skirting the gravitational pulls of planets and moons, and carrying a payload of consolidated cultural wealth out into the cosmos. Carried by a Titan-Centaur rocket, Voyager 1 lifted off from the Florida coast on Sept. 5, 1977. I was exactly 3 months old. But now, Voyager 1, and its twin Voyage...