Jupit

Driving to Jupiter

There is no road. There is a distance, though, and that is enough for me. Here is how long it would take at speeds you know.

Doing the sums

Walking5 km/h, without stopping
By car100 km/h, without stopping
By airliner900 km/h, a typical cruising speed
At Voyager 1’s speed17.0 km a second, about 61,000 km/h
As light299,792 km every second

Distances are straight lines from Earth at the site clock’s time, so wind the clock and the trip gets shorter or longer as the planets move. No real journey goes in a straight line, and I know it: spacecraft follow curved paths and borrow speed from planets on the way. The car and airliner speeds are round numbers; Voyager 1’s is NASA’s figure for its speed away from the Sun.