Abstract

The current state of cosmology is easy to summarize: a very successful standard model — the hot big-bang cosmology — that accounts for the evolution of the Universe from 10 −2 sec until the present; bold ideas based upon early-Universe physics — foremost among them inflation and cold dark matter — that can extend the standard cosmology to times as early as 10 −32 sec and address the most pressing questions; and a flood of observations — from determinations of the Hubble constant to measurements of CBR anisotropy — that are testing inflation and cold dark matter.

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