Although we all enjoy comic books as works of fiction that describe impossible beings with incredible powers and fantastical worlds, it is nevertheless exciting, interesting, and fun when we think of ways that they might come about in the real world. Whether it's through the laws of physics or ever-sophisticating technology, there are small windows of fact that give us glimpses of what just maybe could be and serve as a baseline for our imagination to follow. (It also doesn't hurt the good old suspension of disbelief).
I thought it would be interesting to make a thread about using science and technology to explain the tools and abilities of our favorite Superheroes. It's something that has been talked about a lot by fans, but let's compile some examples.
I'll start (duh):