This shouldn't come as a surprise as Syfy is in the process of a lot of turnover as it refocuses its programming once again back toward more outer space-themed fare. Well, that and the fact that Dominion was putting up crummy ratings after a massive drop between Seasons 1 and 2.
Dominion was based on the 2010 film Legion, and told the story of—okay, look, I barely understand any of this so forgive me while I try—Gabriel the archangel coming to Earth to fight humans after believing they were responsible for the disappearance of God. Michael the archangel fought alongside humans, who included the "chosen one" who was prophesied to save humanity, Or something!
Will you miss Dominion?