I recently downloaded Nasa World Wind--it is amazing! It is an open source globe explorer, similar to that of google earth, except you can explore the Landscape of the world! Check out a screenie: image (http://i7.photobucket.com/albums/y259/tgo735/screen001.jpg)

sorry, i forgot to post the link: http://www.worldwind.arc.nasa.gov/ and i made another screenie: image (http://i7.photobucket.com/albums/y259/tgo735/screen002.jpg)

nasa has another program that lets you wonder through the stars. I have played around in it and its pretty neat. I forget the link to it though.

thats awsome im downloadin it