Astronomy & Earth · Space
The Solar System
Our neighborhood from the Sun to the Oort cloud: formation 4.6 billion years ago from a collapsing nebula, the frost line that split rocky and giant planets, a tour of the planets, asteroid and Kuiper belts, Kepler's laws, and why Pluto was reclassified.
Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: Gravity & orbits. Next: Stars & how they die; Exoplanets & life. Sources: NASA Solar System Exploration; IAU 2006 planet definition; Kepler's laws (1609–1619).Next: 1. Formation