Planetary Science
Planets, moons, and small bodies of the solar system and beyond.
Articles (4)
- Solar Eclipses: How They Work and Why Totality Is Rare
A solar eclipse happens when the Moon passes between Earth and the Sun. Learn the types, why totality is rare, the Saros cycle, and how to watch one safely. - Exoplanets
Exoplanets explained: how astronomers find worlds around other stars, the strange planet types found so far, and the search for habitable Earth-like planets. - Kepler's Laws of Planetary Motion
The three empirical laws describing planetary orbits: ellipses, equal areas in equal times, and the relation between period and orbit size. - Tidal Locking
Why one side of a moon or planet permanently faces its partner: the gravitational dance that synchronizes rotation with orbit.