SciencePhoto: HT WorldNASA's Voyager 1 to Reach One Light-Day Distance from Earth
NASA's Voyager 1, launched 49 years ago, will reach a historic milestone on November 18 by crossing the one-light-day distance from Earth, traveling 16.09 billion miles (25.89 billion kilometers). At this distance, light takes 24 hours to travel between Earth and the spacecraft. Voyager 1, the farthest human-made object, travels at 28,000 mph and was the first to enter interstellar space in 2012.
HT World·




