Google have launched a new feature in Google Earth called 'Sky.' Google Sky lets users look at the stars from any point on the globe, in Google's words 'you can now explore the universe from the comfort of your chair. Zoom in to distant galaxies hundreds of millions of light years away, explore the constellations, see the planets in motion, witness a supernova explosion; it's like having a giant, virtual telescope at your command - your own personal planetarium!'
To access Google Sky you will need to download latest version of Google Earth - video guide is on YouTube:
Google Sky is a very impressive tool and a nice adaption of Google Earth - but I haven't worked out how to use it for advertising yet!
Screengrabs from Google Sky