Discover how human spaceflight began and why it matters for our lives today! Explore NASA, the Cold War space race, astronaut training, and the impact of seeing Earth from space. In this episode of ...

About 70,000 years ago in Africa, humans expanded into more extreme environments, a new study finds, setting the stage for our global migration. By Carl Zimmer Geography is one of the things that sets ...

New fossil research shows how human impacts, particularly through the rise of agriculture and livestock, have disrupted natural mammal communities as profoundly as the Ice Age extinctions. Fossil ...