Explore Capsules

Constellations organize the night sky into recognizable patterns, linking astronomical observation with centuries of cultural meaning. Readers will learn how major constellations are identified, what stars define them, when and where they are visible, and how different traditions have interpreted their forms and stories.

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.