On November 15, 2026 , Voyager 1 will achieve a jaw-dropping milestone: it will be exactly one light-day away from Earth. Imagine this — a signal traveling at the speed of light will take a full 24 hours to reach it. This isn’t just a number; it’s a monument to human curiosity, persistence, and the audacity to send a tiny spacecraft hurtling into the endless expanse of interstellar space. A Journey That Began in 1977 Launched on September 5, 1977, Voyager 1 began as part of NASA’s bold Voyager program, designed to explore the outer planets during a rare celestial alignment. Back then, computers were slower than today’s calculators, and the notion of traveling beyond the solar system seemed like science fiction. Yet, this unassuming spacecraft has outlived every expectation, becoming humanity’s most distant messenger. During its epic encounters with Jupiter and Saturn , Voyager 1...