[August]

Originally Posted by mookiemookie

I wonder how they came up with the "1 in 3,200" chance. Did they measure the surface area of the debris and the surface area of a human's head, taking into account population densities and etc etc etc.

Dunno but from the article:

In the past, Nicholas Johnson, the head of NASA's Orbital Debris Program Office, has estimated that the chances that any of the UARS debris would hit anybody were 1 in 3,200 — which translates into a 1-in-20 trillion risk for any particular person.