What is cosmos used for?

I'm curious to understand, what exactly is Cosmos utilized for? It seems to be a buzzword in the cryptocurrency and blockchain world, but I'm not entirely sure of its practical applications. Could you elaborate on the various uses of Cosmos and how it fits into the broader landscape of digital assets and finance? I'm particularly interested in understanding its role in facilitating transactions, enhancing security, or enabling new forms of decentralized applications. I'm eager to gain a deeper insight into this fascinating technology.