pcmhacking.net

I found this awesome universe simulator. Best part is its free. Hats off to the developer on this one. Miles ahead of any of the paid ones and its only in beta stage.

I spent hours playing around with this already.

http://spaceengine.org/

As long as your tin foil hat is OK for re-entry

Apparently there is space flight simulator in it too and can do all that, even the hat.