Have you ever wondered if the Bifrost, that magic rainbow bridge that links Earth 616 and Asgard in the MCU and various depictions of Norse mythology...WAS REAL? NO?! Too bad! Science doesn't care, ...
At the end of Thor, the Bifrost - a method of instant transportation between the Nine Realms - is destroyed, and we're led to believe that it's impossible for Thor to get back to Earth without it. But ...
The Bifrost, also called the Rainbow Bridge, is an interstellar portal controlled by Heimdall that allows for instantaneous travel between the Nine Realms. If the bridge is left open for a long period ...