Dive into the depths and beyond with this episode, where we explore groundbreaking laser propulsion for submarines, offering a glimpse into ultrafast travel and stealth beneath the waves. Then, journey through the cosmos with insights into the energetic neutrinos from supernovae, revealing the universe's secrets from the life cycle of stars to the forces shaping our cosmos. Finally, we discuss China's Tianwen-3 Mars mission, a bold step in the space race that could redefine our understanding of the Red Planet. Tune in and share this cosmic voyage with fellow explorers.