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Cosmology

Cosmology is very exciting for three reasons. There is a very successful standard model - the hot big bang - which describes the evolution of the Universe from 10^{-2} sec onward. There are bold ideas, foremost among them are inflation and cold dark matter, which can extend the standard cosmology to within 10^{-32} sec of the bang and address some of the most fundamental questions in cosmology. There is a flood of data - from determinations of the Hubble constant to measurements of CBR anisotropy - that are testing inflation and cold dark matter.