How is the distance of the Voyager 1 measured?
How is the distance of the Voyager 1 measured? This is a real-time indicator of Voyagers' straight-line distance from the sun in astronomical units (AU) and either miles (mi) or kilometers (km). The elapsed time it takes for light (or radio signals) to travel between the Earth and a celestial object. Why does Voyager 1 move away from the Sun? Note: Because Earth moves around the sun faster than Voyager 1 is speeding away from the inner solar system, the distance between Earth and the spacecraft actually decreases at certain times of year. This is a real-time indicator of Voyagers'...