Invited Review Lecture: Third International Conference on the Identification of Dark Matter, York, England, Sept 2000; (astro-ph/0102305)

Abstract. Over the past three years, our confidence in the inferred values of cosmological parameters has increased dramatically, confirming that the flat matter dominated Universe that dominated cosmological model building for the past 20 years does not correspond to the Universe in which we live. I review recent developments here and quote best fit current values for fundamental cosmological parameters.

Table of Contents

• INTRODUCTION
• SPACE, THE FINAL FRONTIER
• Expansion
• Geometry
• TIME
• Stellar Ages:
• Hubble Age:
• MATTER
• The Baryon Density: a re-occuring crisis?
• Omega_matter
• Equation of State of Dominant Energy:
• CONCLUSIONS: A COSMIC UNCERTAINTY PRINCIPLE
• REFERENCES