Well, great job, NASA.  You’ve gone and done it.  You have to keep these Mars Rovers the size of remote control Radio Shack toys.  That way, when the malicious alien spore infects the thing and sends it back to earth, it’s not the size of a small Transformer.  Sure, it looks harmless now.  Throw some tentacles and death vomit on it and you won’t be so dismissive.  (PS: COOOOOL!)

[Via NASA]