Taking "cosmo"(from "cosmopolitan" or "cosmos") and adding the word "nation", makes for a memorable and powerful business name.
Cosmonation has 11 characters and four syllables. Four syllable names are used by established brands like Coca-Cola, Airbnb and ESPN.
This domain was first registered in December 2014. Older domains have an advantage when ranking in search engines.
Cosmonation.com is a dot com domain. Dot com domains are the most valued top-level-domain in the world, used by famous websites like facebook.com. When you own a dot com, it is much easier to rank for your own name in search engines.