The popular YouTube series "The Science of..." has returned for its most ambitious season yet. Season 5 dives deep into the fascinating questions that are shaping our future. In these episodes, the hosts explore the mind-bending world of artificial intelligence, questioning if a machine could ever truly think for itself. They also journey into the cosmos to uncover the secrets of black holes and investigate the real possibility of finding life on other planets. The season turns the lens inward as well, examining the incredible resilience of the human body and the complex science behind our own emotions. With stunning visuals and clear, engaging explanations, the show makes difficult subjects accessible and exciting for everyone. season 5 ended on January 20, 2026 sign up for a reminder.