I have plenty of reason to believe that our ships are creating wormholes to shortcut their way through space between destinations. There's plenty of theory's that would suggest such possible methods of travel to be possible if there was a way to open up and maintain a wormhole. Heck many scifi stuff use this as a way to allow ships to travel between places really fast. the loading screen we sit through between planets looks like a wormhole to me. If you wanted to talk about things in destiny with no scientific background, talk about how there's the same gravity on all planets, like several hundred of other threads have done.