Today is the 40th anniversary of the Apollo 11th mission where man landed on the moon. To celebrate the anniversary, Google announced the launch of Moon in Google Earth. You can now use Google Earth to explore, fly around and search the moon.
Here is the video blog post explaining this announcement:
The Google LatLong Blog has details on many of the features of Google Moon.
Postscript: At 3:30pm EST today, Google has updated their home page to make a Google Doodle for the special day. Here is a picture:
Also, Google’s Street View Man is dressed in a space suit today: