English MESSENGER Cited by user Xession on 26 Jan 2011 MESSENGER (an acronym of MErcury Surface, Space ENvironment, GEochemistry, and Ranging, and a reference to Mercury being the messenger of the gods) is a robotic NASA…
English Radio science subsystem Cited by user Pdeitiker on 06 Jul 2008 A radio science subsystem (RSS) is a subsystem placed on board a spacecraft for radio science purposes.