What are they hiding from us?

In this first screen shot you can see that to the left of the Orion Nebula,
there is a small rectangular shaped black area showing up. (I marked it with a yellow pushpin marker) .
Don't have Google Earth? Click here: http://www.download.com/3120-20_4-0.html?qt=google%20earth
As you zoom into it, it becomes larger and larger in your screen. See lower images for closeups.

 

 

 

When zooming in, it's even more obvious that a section of sky is being blocked? Why? Next frame shows an even closer view below!

 

 

 

As you're zooming you get the feeling something is missing!!!

 

 

In this closest shot it appears there is a light source coming from the area that is being hidden. The light from it is radiating around the black area!!! What is it? and why did they block ONLY this section in all of Google Sky??