Slice of the atmosphere.

This is a very long and skinny image so you'll have to click on the strip on the left to see it.  This is an interesting diagram/slice of atmosphere showing the heights of a bunch of familiar things.  Interesting to see that Spaceship One made it a little higher on a single engine than the main engine shutdown altitude of the space shuttle.  Of course the shuttle is going a LOT faster and can stay in orbit while Spaceship One falls back down.

| Click on the image to explore a slice of sky |