String-Theory and Space Travel?

Question

Do you think there are an rational applications for string-theory in our broad-based exploration of the universe? How could they be applied to supplement what we already know?

Answer 1

No one knows yet.

String theory posits numerous dimensions of space beyond ours.  If we could find a way to access those dimensions there could be possibilities.  Accessing those dimensions (if they are even there) however is difficult to the point of seemingly impossible.  

But who knows...

Answer 2

No application of string theory has been found yet. Practical or impractical.