What terrifying forces truly lurk within the ocean? For centuries, sailors and scientists alike have speculated about waves so massive and sudden that they seemed impossible, defying conventional mathematical models and physical laws. Long dismissed as maritime myth, these rogue waves—also known as freak waves, giant waves, or “killer waves”—have claimed countless ships and seafarers, leaving few survivors to testify. Those who did survive often recounted their encounters with trembling exaggeration, only to be ridiculed as overly fearful. Photographs from the University of Delaware’s oceanographic research vessel in the North Atlantic revealed a striking phenomenon: amid relatively ordinary waves, a solitary, towering wave rose abruptly, dwarfing its neighbors. In storm conditions where average waves reach ten meters, such rogue waves could suddenly surge tens of meters high, forming near-vertical walls of water. No modern ship, no matter how advanced, can easily overcome such a...