Spacelike surfaces that extend to null infinity are called hyperboloidal.
This site is currently under construction. In the future, you will find here explanations, history, and thoughts on the hyperboloidal method as well as applications of the technique to interesting problems.
This is the first installment of a three-piece series on Penrose diagrams and the associated conformal compactification procedure. This post is a technical how-to describing how I draw quantitatively accurate Penrose diagrams to illustrate the causal structure of time surfaces using free and open-source software.