Yes, believe it or not, Absurdism does deal briefly with Cosmology. Absurdism posits that there is probably no meaning in the cosmos, as humanity seems to be unable to find any inherent meaning in it, despite its long history of searching for such. This also means that if a "divinity" is involved in a "creation" of the Cosmos, then said "divinity" is the cause of the absurd mix of Human and Cosmos.
What keeps Absurdist as a group in this situation is its relation to Agnosticism. Modern Absurdists (Neo Absurdists) typically lean more on the side of a "godless universe", but not exclusively. Some Absurdist religious views can contain obviously "Absurd deities" such as; Loki, J.R. "Bob" Dobbs, Eris, and Cthulhu. These deities are usually considered more of a symbolic mascot of the absurd than a divinity that exists in physical reality. Some Absurdist views can even include agnostic forms of modern and popular religions, such as Christianity and Hinduism, although this is rare in the 21st century.
According to Absurdism, the most important question is not if a god exists, but wether someone should escape this absurd reality or embrace it. This is often viewed in the terms of "suicide". Should someone commit physical suicide to escape reality or not? Should someone commit philosophical and/or intellectual suicide to escape reality or not? Ignoring reality is the same thing as pysical suicide according to Absurdism. Either choice is an attempted escape from reality. Absurdism plainly points out that any form of suicide is against the integrity of the individuals own existence. Death is also just as absurd as life, so suicide does not solve the problem. Therefore cold, hard reality must be embraced when it comes to the Human Condition of the Absurd. This means that the ardent Idealist will have the same skepticism as the cold, mechanistic Materialist when it comes to holding the philosophy of the Absurd. The Idealist will be constantly reminded that his or her Idealism is probably held in vain, and that holding more than just a "slight hope" may constitute intellectual suicide. Also, the Materialist will be reminded that even though current scientific evidences point in their favor, that the "whole picture" has yet to be seen, and more than likely will never be seen. Absurdism also tends to have a sense of dark humor, parody, and brutal honesty when it comes to origins along with the rest of their view of reality.