In the latest version of Google Earth you'll get your own personal planetarium.
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!
Update
Onelargeprawn was a few seconds quicker (17 to be precise) with these news. I'll leave the post as it is for now, in case you want the extra info.
Link