Reading about the vast size of the universe, I started exploring the possibility of travelling through the it. One popular theory on the structure of space-time is a wormhole. It postulates a theoretical passage through space-time that could create a shortcut to a different spot in the universe. So far, we’ve thought about travelling in a linear fashion. A simple way to think about wormhole travel is folding a paper in half and travelling from one end to the other by poking a hole through the middle. The image below is a good way to visualize it. There is debate about whether wormholes can actually exist. We are definitely very far from actually observing a wormhole, but scientists are exploring the possibility of their existence.