Launched nearly 50 years ago in 1977, NASA’s Voyager 1 on Wednesday, Nov. 18 will have traveled one light-day from Earth, which is more than 16 billion miles (25.9 billion kilometers). Voyager 1 is the most distant human-made object, and any light from Earth would take 24 hours to reach the spacecraft. NASA will highlight this historic milestone with two events. On Tuesday, Nov. 17, NASA invites the world to participate in “Shine Bright for Voyager’s Light-Day” by creating a symbolic wave of golden light encircling the planet after sunset….
