Explore Capsules

The claim that the Great Wall is visible from orbit survives in textbooks and trivia nights despite astronauts saying otherwise. The arguments here approach the myth from different angles: the physics of human eyesight, firsthand astronaut testimony, the role of cameras and optical aids, and why comfortable falsehoods outlive clear corrections. It becomes a lesson in how to test what everyone knows.

The Korean War began as a struggle rooted in Korea’s division and domestic political conflict, then expanded into a defining proxy war of the Cold War. This account explains how local ambitions, UN intervention, American and Soviet strategy, and China’s security concerns shaped the course and meaning of the war. Readers will understand why interpretations of the conflict differ and how civil war and global confrontation became inseparable.