http://www.youtube.com/watch?v=GSuJq4UzkIA&eurl=http://googlemapsmania.blogspot.com/2009/02/google-earth-5.html&feature=player_embedded
http://earth.google.com/
Google Earth 5
Monday, February 02, 2009
Google have released Google Earth 5, which includes a number of new features. The most impressive are Google Ocean, which lets you explore beneath the waves, and Google Mars, which lets you explore the terrain of the red planet.
Frank Taylor at the Google Earth Blog has already written a number of excellent blog posts exploring the new features:
Google Ocean
Google Mars
Historical Imagery