NASA’s Voyager 1 space probe will continue its almost half-century of service by delivering yet another milestone: by this time next year, it should have reached a distance of 1 light-day from Earth. Based on the most recent estimates, the revolutionary Voyager 1 space probe is expected to achieve the feat on November 15, 2026, continuing its reign as the farthest-travelled human-made object. After flying by Jupiter, Saturn, and Titan, the spacecraft continued its journey into interstellar space. The Speed of Light Based on present-day physics, scientists know the speed of light is the greatest speed at which anything in...