**References for Module 2: The History of Gravity and of Astronomy**- Supplement the videos with "OpenStax Astronomy"
- 04: Newton's Laws as well as his Guidelines
- We finally get to Newton's Laws of Motion, and his Law of Gravity. We also talk about centers of mass and other things related to the understanding of orbits. They provide a framework for predicting the motions of the planets around the Sun. And how everything moves.
- Newton's Laws
- Newton's
*Principia* - Calculus Made Easy
- Newton's Derivation of Kepler's Laws
- A more detailed derivation
- Momentum
- Momentum
- Center of Mass
- Earth-Moon Barycenter
- Albireo double star