This past June, our old friend Voyager 1 just encountered a 90,000ºF wall of fire that we couldn’t even think of getting through. Now, back in 1977, when NASA’s two space probes, Voyager 1 and 2, were launched, we had only one ambitious goal: to explore the outer reaches of the Solar System and, if possible, cross into interstellar space. Well, now in 2025, we have not only achieved that goal, but we have also gone where no other human-made machine has gone before.