An understanding of the scale of space puts into proper perspective just how little physical matter is out there.
If you adjust an Astronomical Unit (1 AU = average distance of 93 million miles between the Earth and Sun) down to a single inch, you’ll get a similar number of AUs in a light-year as there are inches in a mile, around 63,300.
That means if Earth is 1 inch from the Sun, Pluto would be 3 feet away, our entire solar system would fit inside the outstretched arms of an adult, and our nearest neighboring star, Proxima Centauri, would be 4 miles away.
Author, EU advocate and narrator Matt Finn, ponders the value and measurement of scales—the further one looks in either direction things just keep getting bigger, or smaller—and how the electric force is exclusively known to be able to scale infinitely, big and/or small.
