Good to see another writer! As for Cosmic Horror, also known as Lovecraftian Horror, is a subgenre of horror that focuses on humanity being insignificant in the cosmos and the horrific beings that roam it. The genre was said to be created by H.P. Lovecraft.

Here's a link that contains more information about it.

http://tvtropes.org/pmwiki/pmwiki.php/Main/CosmicHorrorStory

Hope this helps!