Gamma Andromeda (planet)

Gamma Andromeda is a star system in which a nuclear meltdown occurred in 50 F.E, in Foundation by Isaac Asimov. The meltdown killed several million people and destroyed at least half the planet. It was caused by ill-done repairs and shoddy-made replacement parts done several decades before. Following the incident on Gamma Andromeda V, the Galactic Empire considered severely limiting the use of nuclear power.