One of my favorite examples of how religiously dogmatic scientists can be about existing theory is centered around the discovery of quasicrystals.
Daniel Shechtman won the Nobel prize for discovering a form of crystals that formed regular non-repeating patterns like Penrose tiles or the tiles used on some Mosques.
As evidence, he had electron microscope images of the materiel, very clearly proving the veracity of his discovery, yet double Nobel laureate Linus Pauling took particular pleasure in making his life a living hell, declaring that "there is no such thing as quasicrystals, only quasiscientists".
>In an interview this year with the Israeli newspaper, Haaretz, Shechtman said: "People just laughed at me." He recalled how Linus Pauling, a colossus of science and a double Nobel laureate, mounted a frightening "crusade" against him. After telling Shechtman to go back and read a crystallography textbook, the head of his research group asked him to leave for "bringing disgrace" on the team.
https://www.theguardian.com/science/2011/oct/05/nobel-prize-...
You would think that scientists would be willing to accept physical evidence even if it isn't covered by existing theory, but sadly, they are perfectly willing to reject it.