Universe generation encompasses those games which attempt to model the whole universe from the level of star generation, to planetary systems, to the surfaces of planets, propagation of life and so on. Universe generation typically uses dynamic world generation to reduce the storage requirements of a whole universe of content.
PCG Wiki References
A Real-Time Procedural Universe - Sean O'Neil: Discussion of procedural techniques for Elite style generation of a universe.
Extract from The Backroom Boys: The Secret Return of the British Boffin by Francis Spufford featuring a section describing how Elite uses the Fibonacci sequence for procedural content generation.
Infiniverse - Development blog of Infiniverse.
Journal of Ysaneya - Ysaneya: The development journal for Infinity: The Quest for Earth.