Titan

In this chapter, we delve into an extensive examination of Titan, the most intriguing of all the ocean worlds in our Solar System as it supports two liquid environments, one at the surface and one at the subsurface. Our exploration begins with an in-depth review of its initial discovery by Huygens, followed by a comprehensive analysis of the observations made over the centuries preceding the era of spacecraft exploration. We also review in detail the Cassini-Huygens mission, its genesis, and the considerable amount of science data it returned at Titan. We review the exciting organic-based environment present at the surface of Titan, and also dive into the mechanisms that we believe takes place underneath the moon’s icy crust. Furthermore, we provide insights into the lines of evidence bolstering the hypothesis that titan harbors a subsurface ocean, endeavoring to elucidate its nature and characteristics. Additionally, we explore the concept of habitability within the context of Titan, contemplating the potential conditions that could support life.