With NASA’s space shuttle program winding down, Roger Pielke Jr. and Radford Byerly have tallied its lifetime costs in a letter to the journal Nature.

Their findings, brought to us by The Houston Chronicle’s SciGuy blog, show: The United States spent more than $192 billion (in 2010 dollars) on the program from 1971 to 2010, or about $1.5 billion per launch.


READ IT AT: [Houston Chronicle]