Thalassa is a term derived from ancient Greek, meaning "sea." In mythology, it often refers to a primordial sea goddess, representing the vastness and depth of the ocean. Thalassa is sometimes associated with the creation of the world and is linked to other deities in Greek mythology. In modern contexts, Thalassa can also refer to various scientific and cultural topics, including marine biology and oceanography. It is used in the names of research institutions and projects focused on studying the ocean and its ecosystems, highlighting the importance of understanding our planet's waters.