The edge of space, known as the Von Karman Line, is considered to be 62 miles (100 kilometers) above sea level.
This boundary, although arbitrary, is generally accepted as the point where aeronautics and astronautics diverge. Below this altitude, a vehicle can generate lift using aerodynamic forces, like an airplane. Above it, a spacecraft relies on other methods, such as orbital mechanics, for staying aloft.
Here's a breakdown to help put this distance in perspective:
- The Von Karman Line: This internationally recognized altitude serves as a practical definition for the start of space.
- Comparison: 62 miles is roughly the distance of a typical marathon run, travelled vertically upwards.
Therefore, while the concept of "space" continues far beyond this point, the officially recognized beginning is just 62 miles above us.
