Our concepts are usually based on our everyday experiences. We know that it takes about a minute to peel an average cucumber, an hour for a lesson in school, that a yard is the distance we cover with a fairly large step, that a mile is, sometimes, the distance to school.
Astronomers also measure distances, but they are on a different scale from the ones noted above.
For example, the distance from the earth to the moon is around 226,000 miles, while the distance to the Sun is more than 93 million miles. An average person walks about 3 miles an hour, which is also the distance between four bus stops in the city. Well, click on the car in order to see how we can get there much faster.