1. Stone, E. (2022) 18 Mysteries and Unanswered Questions about Our Solar System. Little Astronomy. https://littleastronomy.com/18-mysteries-and-unanswered-questions-about-our-solar-system
2. Review Article: Cosmology and Classical Physics
3. Swedenborg, E. (1734) Latin: Opera Philosophica et Mineralia. Frideich Henkel, Dresden & Leipzig. https://www.abebooks.com/first-edition/Opera-Philosophica-Mineralia-SWEDENBORG-Emanuel-Frideich/31101903217/bd
4. Brush, S.G. (2014) A History of Modern Planetary Physics: Nebulous Earth. Cambridge University Press, Cambridge, 7.