Speculating on Subsurface Oceans and Cracks on Exoplanets

The speakers delve into the topic of subsurface oceans on exoplanets similar to Earth and the potential for extraterrestrial life. They ponder the possibility of creatures using cracks or plumes to reach the surface and observe the stars, emphasizing the need to look up at the night sky. The chapter concludes by previewing the next episode's focus on Jupiter's early luminosity and its impact on its moons.