Rosen's Bridge
Rosen's Bridge is an abstract visualization of the einstein-rosen Bridge equation. By using the general theory of relativity, Einstein and Rosen were able to propose the existence of bridges, or gateways, through space time.
Otherwise known as wormholes, their creation could provide fast travel to not only different parts of space, but entirely separate universes. They even hold the key to time travel in the past and future if moved in the correct way. A rather crazy idea to wrap one's head around, but very likely just one of the many answer to secure the continuation of human existence in the distant future.
