Google Earth lets you fly anywhere on Earth to view satellite imagery, maps, terrain, 3D buildings, from galaxies in outer space to the canyons of the ocean. You can explore rich geographical content, save your toured places, and share with others.
Google Earth 5.0 features:
* Historical imagery from around the globe
* Ocean floor and surface data from marine experts
* Simplified touring with audio and voice recording
all the above information is taken from;