The story of how humans went from building the first boats to discovering the secrets of the deep. Marvel at incredible scientific discoveries, be dazzled by some of the most exciting new species, and admire the incredible people who took the very first steps below the surface.

On July 12th, 1776, Captain James Cook, already lionized as the greatest explorer in British history, set off on his third voyage in his ship the HMS Resolution. Two-and-a-half years later, on a beach on the island of Hawaii, Cook was killed in a conflict with native Hawaiians. How did Cook, who was unique among captains for his respect for Indigenous peoples and cultures, come to that fatal moment? Hampton Sides' bravura account of Cook's last journey...

In the summer of 1938, botanists Elzada Clover and Lois Jotter set off to run the Colorado River, accompanied by an ambitious and entrepreneurial expedition leader, a zoologist, and two amateur boatmen. With its churning waters and treacherous boulders, the Colorado was famed as the most dangerous river in the world. Journalists and veteran river runners boldly proclaimed that the motley crew would never make it out alive. But for Clover and Jotter,...