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Cosmogonic from Callaham's R-E Dic. of Sci. & Tech.

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Svetlana, depending on your target audience you may prefer to use something more understandable. Sometimes, Russian cultural texts can be extremely complicated, which may not go well with the English speaking audiences.

Have a look at some definitions:

Stephen Hawking's Universe
... Universe: The Web companion piece provides detailed explanations of the most
important ideas and developments in human understanding of the universe.
www.pbs.org/wnet/hawking/html/home.html - 23k

A scientific or mythological account about the origin of the universe. All cultures throughout the world have some kind of origin myth (or cosmogony ), thus answering the human existential question regarding the origin of the universe and man. Essentially, cosmogony is a Greek word which literally means "the birth of the cosmos."
www.apologetics.org/glossary.html

A theory or model of the origin and evolution of the physical universe; ancient creation stories, such as Genesis 1-2 and the Enuma Elish are cosmogonies.
www.hope.edu/academic/religion/bandstra/RTOT/GLOSSARY/C.HTM