The Summer of Sylas

The Summer of Sylas is a seasonal event that happens every 100 Bright Years (4 Earth Years.)

Originally caused by Sylas Langley, it is a period of time where all of Via Lactea experiences extremely blazing heat, and temperatures so high it causes certain chemicals to lace the atmosphere, causing people to lose their sense of identity. Some planets are not affected due to the innate heat resistance of the population, such as Mercury or Venus.