Space & Astronomy

Astronomy is the oldest science and still the one that most reliably stops people in their tracks. This category covers the Solar System in the order it actually sits, the physics that keeps it arranged that way, and the missions that turned distant points of light into places with weather and geology. It also covers the units, because light-years and astronomical units confuse almost everyone the first time. The explanations connect each fact to the reason behind it, so the Solar System reads as a system rather than a list of names to memorise. Nothing here needs a telescope or any maths.