At some typical boundary regions such as null infinity, timelike infinity, spacelike infinity, black hole horizons and cosmological horizons, null tetrads adapted to spacetime structures are usually employed to achieve the most succinct Newman-Penrose descriptions.
Infinity Gems | Infinity | Dopes to Infinity | Infinity Science Fiction | Arc of Infinity | The Infinity Gauntlet | Infinity (audio) | An Infinity of Mirrors | Timelike Infinity | Star Trek: Infinity's Prism | Infinity War | Infinity Park | Infinity on High | Infinity Broadcasting Corporation | Calculating Infinity | Zero to Infinity | timelike infinity | Marathon Infinity | Infinity (film) | Infinity (Charice album) | Infinity Blade III | Castle Infinity | Ace Combat Infinity | 93 'til Infinity |
The plot begins not very long after the Third Expansion began (the First Expansion ended when humanity was conquered by the Squeem; the Second Expansion ended with the conquest of humanity by the Qax, and the Third Expansion, ~5400 CE, began after the events of Timelike Infinity, pursuant to Jim Bolder's destruction of the Qax home-system).