Speck in the Cosmos

One of the scariest things I would do is look out into the sky in a car park at night time. I would become aware of how big space is, a huge abyss that goes on forever in all directions. If that thought doesn't make you feel small, nothing will. I'm just a speck in the cosmos. I'm equal almost to nothing compared to everything else. Next to a puppy, I feel big but compared to the universe, I'm almost nothing, just a speck. 

Then you wonder how the rules persist over such a large space; the moon is roughly 376,000 km away. 1 thousand km takes you half way across west  Europe. The moon is there because the Earth's gravity makes it stay there, it is acting on it over such a large empty vacuum. You could fit all the planets in the space between the Earth and the moon yet even over that distance, it is kept in orbit, around us. There is no string, no radiation, nothing, no visible interaction between the earth and the moon.