Google Sky 

Google Earth improved. You can browse millions stars with a new Google virtual telescope now.

Google Sky  allows users to reach the two hundred million galaxies.

You simply click on a button at the top center of the new Google Earth version and it switches to this new mode. Then, you can use the same type of navigation as always in Google Earth to zoom in and look at the stars, galaxies, nebulas, etc. of the universe. You have to download latest Google Earth version to get Sky features.

Google Sky features:

- Hubble tracker

- Sky guide

- Top quality sky images

- Horizon addon

Google earth picture: 

Google Sky Download