Go to marsnews.com and find a link to translate the webpage with babelfish in the lowerright corner.
Click the German flag and be amazed. It helps if you can read German but ... not a lot.
If you still haven't guessed it: GeistVagabund is BabelFish German for Spirit Rover!

In French it is not bad either: "esprit vagabond" (wandering mind) makes think to some wandering ermit or yogi. That gives a poetical touch to the story...

English to Spanish is even better:

"Rover Del Alcohol"

tty

wow, really fun!
Italian version is "vagabondo di spirito" that could be re-translated also as "joker vagabond" ...