Thor is the mythical god of thunder, lightning, and apparently momentum, if you want to know how he flies at least.
In my latest Because Science, I explore a concept in physics called the conservation of momentum and apply it to Thor’s flight. It actually makes a lot of scientific sense! If the hammer can make itself arbitrarily heavily (as I explored in another video), then the hammer can drag Thor along at any speed he can throw Mjölnir.
I’m totally with Stan Lee on this one. I don’t like plot points that only confuse the reader, like how Superman flies (he just does), and I applaud his effort to make a god scientifically sound.