What does a journey through a wormhole actually look like?

A simulated wormhole. Credit: Corvin Zahn licensed under cc-by-sa/2.0/de/ Let's talk about wormholes. I won't be spoiling anything to say that the plot of Christopher Nolan's latest film, Interstellar, hinges on the existence of a large wormhole allowing intrepid astronauts to travel through in search of new worlds to colonize.In the film, the wormhole is basically just a deus ex machina -- a simple plot device to get the main characters out into deep space. Nevertheless the film's brief depi...