Space/Science — HabitableZone

Space/Science » in reply to The folks at JPL are really good at what they do

How Many Great Robot Missions Haven't Had Problems?

Those that have include:

Galileo
Mariner 9
Viking (from a standpoint of experiments having unexpected results)
Voyager 2
Mars Global Surveyor
Cassini (Huygens' problem & we hope will it be great)
Magellan? I know they did a major mission plan change

Regards,
Mark

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