Astronomy
The Stability of Triple Star Systems
Quick fact
In a stable triple star system, the inner two stars orbit each other in days or months while the third orbits the pair from a vast distance, completing its revolution in years. This configuration, seen in Alpha Centauri, avoids chaos and persists for billions of years.
Why this is interesting
Most stars are not loners — many live in triple systems. How do three suns dance without crashing?