The human mind isn't really built to grasp astronomical scales. Even the solar system is hard to fathom, and while we have probably all heard comparisons involving football fields and marbles, you really need to see a scale model for it to start making sense.
For me it was always hard to make sense of the distances between the outer planets. Saturn is twice the distance from the sun as Jupiter, Uranus is twice that distance, and Neptune still further. The inner planets may as well be right next to each other on that sort of scale.
If you treat the Earth as a marble, what would an accurate, to-scale model of the Solar System actually look like? Something much larger and expansive than a textbook illustration would suggest. To explain the sheer scale of our planetary system, Wylie Overstreet, Alex Gorosh and some friends decided to build their own model at a dry lakebed in Nevada. Using a reported scale of 1 astronomical unit per 176 metres, the group leveraged seven miles of empty desert to plot the planets and etch their orbital lines into the dirt.