Gretchen Heefner, "Sand, Snow, and Stardust: How US Military Engineers Conquered Extreme Environments" (U Chicago Press, 2025)

Deserts, the Arctic, outer space—these extreme environments are often seen as inhospitable places at the edges of our maps. But from the 1940s through the 1960s, spurred by the diverse and unfamiliar regions the US military had navigated during World War II, the United States defense establishment took a keen interest in these places, dispatching troops to the Aleutian Islands, North Africa, the South Pacific, and beyond. To preserve the country’s status as a superpower after the war, to pave runways and build bridges, engineers had to understand and then conquer dunes, permafrost, and even the surface of t...