Google does this every now and then. It just adds something weird to its homepage for some random reason: a sort of this day in history sort of situation. Today is 66th anniversary of the reported Roswell landing. To 'celebrate' Google has put together a really awesome little flash game on its homepage. You have to get on it!
It's actually super good! It's like a little mini 2D point and click jobbie, and I'm really enjoying it. I have no idea how long it lasts (I'm in the process of playing now, but it's a great little diversion. I'm keeping this tab open all day and I'm going to knock it over throughout the morning.