No not that sort of galaxy but the immersive Google Earth set-up called ‘Liquid Galaxy’ which displays Google Earth in a surround view around you using eight 55-inch LCD screens.
And now it’s open-source. From the mechanical design of the frames to the Ubuntu sysadmin scripts used.
If you don’t have the money – or any spare 55″ LCD’s lying around – Google have provided a ‘quick start’ guide on setting up your own liquid galaxy with nothing more than time, patience and 2 computers.