One question that fans have been asking after seeing Captain Marvel is this: “how did Mar-Vell get the space stone in the first place? “
We have a new theory that claims that Howard Stark had something to do with the back channelling of this Infinity Stone to Mar-Vell. There are two versions of the theory, and one has been posted by u/lvaztec on r/Fantheories.
This Redditor believes that it is Howard Stark who had handed over the space stone to the Kree. Mar-Vell had been working with the Skrulls, and so, it is also very much possible that Mar-Vell had been trying to harness the energy of the Tesseract for helping the Skrulls in their endeavour against the Kree.
It is also possible that Mar-Vell had found her way to earth while she had been searching for the space stone and she crossed path of SHIELD’s Howard Stark.
Even though both of these versions are likely, it is pretty hard to tell what had actually happened before the events of Captain Marvel. Marvel had made it a point to leave a few things vague.
Avengers: Endgame will release on April 26, 2019. The cast is impeccable as some of the biggest names are part of the project including Robert Downey Jr. (Iron Man), Chris Evans (Captain America), Sebastian Stan (Winter soldier), Chris Pratt (Starlord), Chris Hemsworth (Thor), Idris Elba (Heimdall), Tom Hiddleston (Loki), Dave Bautista (Drax), Pom Klementieff (Mantis), Mark Ruffalo (Hulk), Scarlett Johansson (Black Widow), Samuel Jackson (Nick Fury), Cobie Smulders (Mariah Hill), Jeremy Reiner (Hawkeye), Benedict Wong (Wong), Benedict Cumberbatch (Dr. Strange), Tom Holland (Spiderman), Letitia Wright (Shuri), Chadwick Boseman (Black Panther), Paul Rudd (Ant-Man), Elizabeth Olsen (Scarlett Witch), Paul Bettany (Vision), Bradley Cooper (Rocket Raccoon), Vin Diesel (Groot), Zoe Saldana (Gamora), Karen Gillan (Nebula), Josh Brolin (Thanos).