A fan recently posted a photo on Twitter of what was supposedly the Avenger's Quinjet on the set of "Thor: Ragnarok." The Quinjet featured in the image looked like it was still undergoing construction.

Reports say that the photo doesn't reveal a lot, and the idea that it is the Quinjet is mere speculation. Additionally, one can't completely recognize the Quinjet from the photo aside from the pointed figure under the covers that could be the nose of the aircraft. Nevertheless, fans do not find it hard to believe that the aircraft will appear in "Ragnarok."

It was recently announced at the 2016 San Diego Comic-Con that the Hulk will be joining Thor in the upcoming film. Thus, it makes sense that a Quinjet is present on the set of the next "Thor" movie.

For those who can't remember, towards the end of "The Avengers: Age of Ultron," the Hulk was last seen riding a Quinjet, trying to escape Earth. Black Widow persuaded him to stay, but to no avail. Hence, the fans' last glimpse of their favorite green hero was when he was seemingly blasting off to oblivion.

"Thor: Ragnarok" will reportedly feature storylines from the "Planet Hulk" comic book. In the original storyline, The Hulk is banished to outer space by his fellow heroes and lands in a world called Sakaar. The hero is forced into combat but eventually makes his way up the ladder until he is recognized as king.

It is likely that the Quinjet will be used when the Hulk lands on Sakaar. But if it is equipped for intergalactic travel, then maybe the hero will use it to meet up with his buddy, Thor.

Despite last month's Comic-Con reveals, Marvel still has many secrets about the upcoming film. Fans can only speculate until "Thor: Ragnarok" hits theaters in Nov. 3, 2017.