On 2nd February 2009 Google has announced the launch of new and advanced Google Earth 5.0. The beta version is available for the Windows, Mac and Linux systems.
Here are some of the features available on it.
Look under the oceans
The land view of the Google Earth is updated with more sophistication by the ocean view.
Need to know if there were real Martians then from Google Earth 5.0 you can see the landscapes of the Mars.
The Time Machine
Now you can go back to the time of a certain place with real images of the place. But don't think you will see the old Roman Coliseum!
Make a Movie
A notable feature, this one allows you to make a video of the tour you made on the Google Earth.