Explore the 10 most important equations in astronomy, from Newton’s laws and Kepler’s laws to Einstein’s relativity and Hubble’s law. Each entry includes intuitive explanations, real-world examples, and links to dedicated posts for deeper study—perfect for students, hobbyists, and educators seeking a clear guide to the math of the cosmos.
This guide explains 11 key differences between a star and a planet—from formation, mass, and composition to light emission, gravity, and orbital behavior. Use this hub to get quick comparisons and follow linked deep-dive posts for each difference with examples from the solar system and beyond.
Explore the life cycle of stars in “10 Ways Stars Are Born and Die,” a hub post linking detailed guides on stellar nurseries, protostars, main-sequence evolution, red giants, supernovae, neutron stars, white dwarfs, and black holes. This overview explains ten distinct formation and end-of-life paths with clear diagrams and links to in-depth articles — click to discover how mass and environment shape stellar fates.
