Published Nov 10, 2026 11:00 AM EST Back in 1998, NASA’s Voyager 1 spacecraft became the farthest human-made object to ever travel beyond Earth. That technically means the intrepid explorer has been constantly breaking its own record for the last 18 years. But on November 18 (at 5:18 a.m. EST, to be exact), Voyager 1 will set a very specific and significant major record. At that point, it will officially be exactly one light-day away from its home planet.