Hacker News Reader

On the pages 19-20, what does USB (communication between the lander and the shuttle) stand for? Universal Serial Bus ?

Unified S-band (http://en.wikipedia.org/wiki/Unified_S-band) its a system for tracking the craft and communicating with it.

(Sorry, didn't mean to downmod, arrows are too small...)

Upper sideband (like AM radio but with the carrier and lower sideband signals suppressed).

Well, seeing reggplant's response, I now stand corrected :)

I never knew about about Unified S-band before. Learning things like this is one of the reasons I love HN.