Popular Science released this infographic to show that although it looked like Felix Baumgartner was jumping from “the edge of space” he really wasn’t close.
So where does space begin?
There really isn’t a defined point at which the earth’s atmosphere and “outer space” begins. Our atmosphere intermingles with interstellar space over 10,000 km above sea level. In case you’re wondering, that’s roughly height where the International Space Station (ISS) orbits.
Most people refer to the Kármán line when they think about where space begins. Named after Theodore von Kármán (1881–1963), the Kármán line is the height at which an aircraft cannot maintain lift unless it’s travelling at orbital velocity. That distance is roughly 100km above sea level. The International Aeronautic Federation (IAF) selected the 100 km boundary because it’s easy to remember.