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

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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 Ω_m, the baryonic matter density Ω_b, the neutrino density Ω_ν, and the cosmological constant Ω_Λ. The evidence currently favors t₀ 13 Gyr, h 0.65, Ω_m 0.4 ± 0.1, Ω_b = 0.02h^-2, 0.001 < Ω_ν < 0.1, and Ω_Λ 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 Ω_ν
• COSMOLOGICAL CONSTANT Λ
• MEASURING Ω_m
• CONCLUSION
• REFERENCES