The Titius-Bode law is a mathematical formula that predicts the distances of planets from the Sun in our solar system. It suggests that each planet's distance from the Sun can be approximated using a simple sequence of numbers, where each planet's distance roughly doubles from the previous one, starting from Mercury. Although the law accurately describes the distances of several planets, such as Venus and Earth, it does not hold true for all celestial bodies, particularly the outer planets like Uranus and Neptune. As a result, while it offers an interesting pattern, it is not a definitive rule in astronomy.