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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?