Ten miles can seem like a lot if you're carrying your books uphill both ways through snowstorms. But on a celestial scale, 10 miles is nothing. It's less than the length of Manhattan. It's 538 blue whales lined up neatly. It's just over 19 Burj Khalifas stacked on top of each other. It's 1/22 of the distance between the surface of the Earth and the International Space Station. It's big to humans, but in the vast expanse of space, it becomes infinitesimally small.