The following article is from Technology Review: MIT's Magazine of Innovation:
Article Title: Space Shuttle Science
Hubble aside, what would you name as the really glorious achievements of NASA in the last 20 years? My favorite: the discovery that every moon of every planet is significantly different from every other moon, a result completely unanticipated and still not understood. One might also pick the amazing success of weather satellites. Or the remarkable pictures you get from your satellite TV system. Those in the know might pick our space spy systems. Then there’s GPS—the Global Positioning System, used to guide airplanes, boats, hikers, automobiles as well as soldiers and smart weapons. These projects have one thing in common: they were all unmanned.
