- Offers readers a comprehensive and comparative overview of the five bodies in our Solar System that have evidence of a subsurface ocean, as well as other bodies that could theoretically have a subsurface ocean
- Provides an in-depth analysis of the research and related subjects, such as the origin of water in our Solar System and the importance of the frost line
- Addresses common misconceptions, misunderstandings, and false claims made in the media and existing literature about ocean worlds
In the last 25 years, planetary science experienced a revolution, as vast oceans of liquid water have been discovered within the heart of the icy moons of our Solar System. These subsurface oceans lie hidden under thick layers of ice. We call them ocean worlds.
Some of these icy moons, such as Ganymede, may hold two to three times more liquid water than all the water present on Earth, while others, such as Enceladus and Europa, are thought by astrobiologists to be our best hope of finding extraterrestrial life.
In this book, we will explore and compare a variety of Solar System ocean worlds, meeting in the process 22 of the most intriguing objects, from the giant asteroid Ceres to the enigmatic, distant Sedna. In doing so, we will also encounter the multiple spacecraft that brought back most of what we know of these worlds (Pioneers, Voyagers, Cassini-Huygens, etc.), as well as the latest scientific research on this new topic.
We will also entertain the possibility of life on each of these ocean worlds by assessing their habitability, as ultimately, these ocean worlds might hold the key to answering the fundamental questions in life: How did life appear? Where do we come from? Is there life out there?
The author Bernard Henin is a member of the Sherwood Observatory in the United Kingdom, where he regularly does public outreach activities related to planetary science.