For a really exciting test dive, zoom over to the deepest point in the ocean, the Mariana Trench. In the deeper ocean, I often found myself staring into an endless expanse of blue water. I found that the interesting areas to explore underwater tended to be coastal areas. At that point, you see a topographical view of the underwater terrain. Navigation works in much the same way as it does when you're exploring on land, but when you zoom close enough on a body of water you're hovering over, you dip under the surface. Google Earth maps both the ocean surface and the seafloor. It's just more fun to use, and the latest version of Google's offering only propels it further ahead of the competition.

However, Google Earth provides far deeper, richer environments to explore.

I also think that LiveSearch's Virtual Earth 3D provides better 3D renderings of cities than Google Earth's comparable 3D Buildings layer. I had no problem searching for exact locations with Google Earth, but LiveSearch Maps did a better job of finding locations by keywords, such as a person's name, business, or landmark. Google Earth still lags behind Microsoft's LiveSearch Maps when it comes to local search capabilities.

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Explore mars in google earth 5.0