Blue

Driven by a lifelong fascination with the color blue, science journalist Kai Kupferschmidt embarks on a global journey to explore its natural presence and cultural significance. His adventure takes him to diverse locations, from laboratories in Japan to volcanic lakes in Oregon, uncovering the science and stories behind this elusive and mesmerizing hue. Along the way, he reveals how blue, despite its rarity in nature, continues to captivate our imagination and influence our world.