;colony/science / Space & Astronomy
Section II · 2 live · 7 on the bench
☾ Space & Astronomy
The sky above the sky — seasons, phases, orbits, and the machinery of the solar system.
Open now
No. 22sim Why do we have seasons? It is not about being closer to the sun — Earth is actually closest in January. It is about the lean. Open the page → No. 23sim Why does the Moon change shape? The Moon never changes shape. What changes is where you are standing when you look at a half-lit ball. Open the page →
On the bench
Day and nightSolar eclipsesPlanetary orbitsGravity wellsTidesBlack holesExoplanets