Published in Nuclear Physics B Proceedings Supplements, Volume 87, Issue 1-3, p. 3-12, 2000. astro-ph/0007187

Abstract. The cosmological parameters that I will emphasize are the Hubble parameter H₀ 100h km s^-1 Mpc^-1, the age of the universe t₀, the average matter density _m, the baryonic matter density _b, the neutrino density , and the cosmological constant . The evidence currently favors t₀ 13 Gyr, h 0.65, _m 0.4 ± 0.1, _b = 0.02h^-2, 0.001 < < 0.1, and 0.7.

Table of Contents

INTRODUCTION

AGE OF THE UNIVERSE t₀

HUBBLE PARAMETER H₀

Relative Distance Methods

Fundamental Physics Approaches

Conclusions on H₀

HOT DARK MATTER DENSITY

COSMOLOGICAL CONSTANT

MEASURING _m

CONCLUSION

REFERENCES

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