COLLOQUIUM ON THE AGE OF THE UNIVERSE, DARK MATTER, AND STRUCTURE FORMATION -- NATIONAL ACADEMY OF SCIENCES -- SPEAKERS -- PROGRAM -- PARTICIPANTS -- Contents -- The age of the universe, dark matter, and structure formation -- Measuring cosmological parameters -- m- The Matter Density -- and m Limits -- Gravitational Lens Statistics -- m and from Type Ia Supernovae -- Summary of Current m and Measurements -- H0-The Hubble Constant -- Gravitational Lenses -- Sunyaev-Zel'dovich Effect and X-Ray Measurements -- The Cepheid-Calibrated Extragalactic Distance Scale -- t0-Ages of the Oldest Stars -- Cosmological Parameters from Cosmic Microwave Background Anisotropies -- Summary -- Globular clusters, Hipparcos, and the age of the galaxy -- Calibrating Cluster Distances -- Hipparcos and the Local Subdwarfs -- Cluster Distances -- Qualifications and Uncertainties -- Conclusions -- Globular cluster ages -- The Isochrone Fitting Method -- The Horizontal Branch Morphology Method -- The Luminosity Function Method -- Discussion and Conclusions -- The age of the universe from nuclear chronometers -- DISCUSSION AND CONCLUSIONS -- Galaxies and large scale structure at high redshifts -- Background -- The Picture at z≤1 -- Beyond z~1 -- Large Scale Structure at z~3 -- The HDF and the Global History of Star Formation -- Concluding Remarks -- The microwave background anisotropies: Observations -- Anisotropies at Angles Larger than 10°: The COBE Measurements -- Anisotropies at Angular Scales Smaller than 10°: Predictions -- Anisotropies at Angular Scales Smaller than 10°: Current Measurements -- Anisotropies at Angular Scales Smaller than 10°: Future Prospects -- Cosmic microwave background theory -- THE THEORETICAL AGENDA -- Cosmic Microwave Background (CMB) as a Probe of Early Universe Physics -- Cosmic Parameters -- Freedom in Inflation.

LSS Constraints on the Power Spectrum -- Cosmological Radiative Transport -- Secondary Anisotropies -- CMB PARAMETER ESTIMATION, CURRENT AND FUTURE -- The Theorists' Phenomenology of CMB Experiments -- Parameters from the CMB, Current State -- Parameters from the CMB+LSS, Current State -- CMB Constraints on Ultralarge-Scale Structure -- Parameters from the CMB, Future -- Primordial nucleosynthesis -- Overview -- Density of Baryons -- Dark Matter -- The universe at z>5: When and how did the "dark age" end -- Clustering in Hierarchical Models -- Evidence for Diffuse Gas at High z -- Detection of First Galaxies at z ≥ 6 via Lyman α Features -- Very High Redshift Supernovae (and Gamma-Ray Bursts?) -- The First Stars: Some Uncertainties -- Heavy Elements and Magnetic Fields -- Where Are the Oldest Stars? -- Summary -- Particle components of dark matter -- Why Supersymmetry? -- The LSP -- Searches for Dark Matter Particles -- Axions -- Conclusion -- Direct searches for dark matter: Recent results -- Searching for WIMPs -- Example WIMP Search -- Searching for Axions -- Conclusions -- Galaxy formation -- Clusters of Galaxies as Scaled Protogalaxies -- Dissipative Galaxy Assembly at Redshift z≤3 -- Galaxies at High Redshift -- A CDM Model for Early Galaxy Assembly -- Concluding Remarks -- X-ray emission from clusters and groups of galaxies -- Observational Status -- Clusters as Cosmological Probes -- MASS DISTRIBUTION AND DARK MATTER -- General Results -- Comparison of Results with Other Methods -- Conclusions -- ABUNDANCES AND IMPLICATIONS FOR ORIGIN OF STRUCTURE -- CLUSTER EVOLUTION -- GROUPS -- CONCLUSION -- Cosmic velocity fields and their interpretation -- Small-Scale Fields -- Large-Scale Flows -- Measuring the topology of the universe -- Biographical Sketches of Speakers and Chairmen.