Skimming the VOID to an Alternate Universe (or Reality). You could show a starship traveling along the ways of a multi dimensional Worm Hole portal to the destination of an alternate reality. (just a thought!)
Dangerous (or maybe Insecure) Sailing, or Sailing Insecure (whatever sounds better to you)... and yes, i'm in pirate mood you can also translate into latin, it'll be something like Dubius Cursus or so (which is a Doubtful Race if translating it word by word... i think. Maybe sounds even better than the sailing thing in english), not sure about other possible translations, my latin skillz are very limited without my dictionary xD however, hope it will at least help to get ideas.
Reason being you have to have quite alot of faith to do something like that. Faith in what ever religion, faith in your craft, your crew, and most importantly, you have to have faith in yourself. If you lack any of these, your voyage would end in tragedy, or would be in veign. I would go with Faith.
Why not an image of a planet that's inside a nebula with some really crazy chunks of ice, or odd rock formations floating about inside of it? Pick some colors that maybe you normally wouldn't use in a spacescape, colors like in the Eagle Nebula picture, or the Orion Nebula, or go even more psychedelic.
Call it Surreal Realms or something. Have fun with the weird rock formations on the planet's surface and the rocks floating about.