This article reconstructs and defends Husserl's argument for the indubitability of the existence of the world as grounded in ultimate principles. Responding to criticisms about the feasibility of a Husserlian‐informed metaphysical cosmology, it offers a systematic account that explores the question of the world's existence at three distinct levels (factual‐empirical, eidetic, and transcendental), leading to a threefold characterization of the world. First, the obviousness of the world's existence serves as our point of departure. The analysis then moves from a conception (...) of the world as (i) an ontic factum and pregiven ground of all theoretical and practical endeavors in the natural attitude, to a priori ontological considerations of (ii) the essence of “world in general.” However, the insufficiency of both factual‐empirical and a priori investigations necessitates a further displacement of the analysis into the transcendental field of pure phenomena. In accordance with the fundamental principle of synthesis, the world is thus reconceived of as (iii) a phenomenological factum. In this context, the clarification of the existence of the world as both an irrational and a “rational” fact provides all the elements necessary to demonstrate the relative apodicticity and empirical indubitability of the world. This justifies our doxic certainty of the world's existence. (shrink)