Scope and Contents: Eugene Avrett and Rudolf Loeser created Pandora, a general-purpose non-LTE computer program, over a span of four decades, from 1966 to 2007. They designed the program to calculate atmospheric models and synthesize spectrum code with a broad application towards solar atmospheres, other stellar atmospheres, and nebulae. Avrett devised and specified Pandora’s astrophysics and numerical methods while Loeser built the program and administered its ongoing use. Both men were affiliated with the...