[masta.g.86]

But is this chicken or is this egg? Did Google change the logo in response to the growing number of searches for "unexplained phenomenon" or is it specifically seeking to drive traffic to that term. Web users are asking if this is a precursor to some viral event or if is tied to yesterday's release of District 9."

It's both. (or neither depending on how you look at it)

Those wacky rapscallions at Google HQ decided to check today's top search query. Lo and behold it's "unexplained phenomenon". To drive up further searches of this query, they threw together a UFO graphic...

...Yeah, that's all there is to this story.