After Google Earth, Google Mars...

In its crusade to invade all possible internet-related markets, and to become essential to all internet users, Google is now proposing maps of Mars, the red planet. After Google Earth, Google Mars.
http://www.google.com/mars/
Knowing that Martians did not connect their network to the human web, the chance that they can use this service is quite low. It is most likely that Google is using this "service" as a pure marketing tool in order to release PR/information that are not related to its recent legal problems and decline on the stock market.