This Alien Solar System Doesn’t Follow the Rules – and Scientists Are Intrigued

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve. As astronomers discover more exoplanets, it is becoming clear that our solar system and its past may be unusual. A fourth planet recently identified in the LHS 1903 system by the European Space Agency’s CHEOPS [...]