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ABSTRACT. We have a well-established standard model for cosmology and prospects for considerable additions from work in progress. I offer a list of elements of the standard model, comments on controversies in the interpretation of the evidence in support of this model, and assessments of the directions extensions of the standard model seem to be taking.

Table of Contents

INTRODUCTION

THE COSMOLOGICAL MODEL

The Cosmological Principle

The Hubble Redshift-Distance Relation

The Expansion of the Universe

THE COSMOLOGICAL TESTS

Spacetime Geometry

Biasing and Large-Scale Velocities

Structure Formation

Constraints From Fundamental Physics

CONCLUDING REMARKS

REFERENCES