WARNING: The following article contains spoilers for Marvel's Ant-Man and the Wasp, in theaters now.
Where is Captain Marvel?
That's the question every Marvel fan is asking. We've known for some time that Brie Larson will bring the character to life, and we know Cap's solo film will explore the her origin in the '90s. But then, at the end of Avengers: Infinity War, Nicky Fury sent out a distress signal to present day Carol Danvers, just before the former director of S.H.I.E.L.D. crumbled to ash as a result of Thanos' reality-altering finger snap. Captain Marvel is coming to help in the fight against the Mad Titan -- that much we know. After all, early concept art of Avengers 4 has shown that Captain Marvel will stand alongside the remaining Avengers to save all of reality.
But where has the character been all this time? If she started her superhero career in the '90s, what happened to her, and why hasn't she been seen, much less mentioned, even one time in all the years the Marvel Cinematic Universe has been developing since it launched with 2008's Iron Man? Since the character is known to operate in the far reaches of space, most fans assumed that the character has been away somewhere deep in the cosmos, and that she will return in her time of need. But what if that's not the case at all? What if the character is instead connected to the Quantum Realm? It's certainly possible, especially given what we just learned about the microscopic realm in Ant-Man and the Wasp.
When we study the clues that have been given these past few years, it seems more and more likely Captain Marvel will be revealed to be tied to the Quantum Realm. After all, all of this gained traction when Dr. Spiros Michalakis was brought on-board the production of Ant-Man as a scientific consultant. In a 2017 interview with Inverse, the doctor revealed that there was a connection between Ant-Man, Doctor Strange (which we kind of figured out a while back) and, of all people, Captain Marvel. "I think they did a great job describing [the multiverse]," the quantum physicist said. "Where these other states exist concurrently with yours. You don’t have to go somewhere else. It’s not like there’s another bubble universe out there, and you can travel to it or something."
At the time, Michalakis was referring to Doctor Strange, but seeing as how Captain Marvel is also connected, this makes us wonder if Carol Danvers could be trapped in the Quantum Realm, if not in another universe entirely. The doctor wouldn't elaborate specifically on the subject of Danvers, teasing only that "there are different ways that some of these ideas appear on-screen in a few years. Not just for Ant-Man, but also for Captain Marvel."