Excavations on unpromising mounds in the Iraqi desert revealed Sumer’s earliest city. Surviving relics and a rebuilt temple have given experts more clues about the ancient metropolis of Eridu.

Peter Kelman writes that concerns about artificial intelligence leading to "natural stupidity" don't recognize the benefits of new activities brought into the world by such emerging technologies.

Millions of people worldwide are affected by African sleeping sickness, Chagas disease and other life-threatening infections ...