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What We Don’t Know About the Universe

Published online by Cambridge University Press:  12 April 2016

Chris Impey
Chris Impey*
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721, USA

Abstract

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Despite progress on many fronts in cosmology, outstanding questions remain. What is the nature of the dark matter? Is the inflationary big bang model viable? Must we accept a non-zero cosmological constant? Do we know the true population of galaxies? What is the range of star formation histories in the universe? Can gravity alone explain the large scale structure we observe? Studies of the low surface brightness universe may provide the answers to many of these questions.

Type
The baryonic mass content of the Universe
Information
International Astronomical Union Colloquium , Volume 171: The Low Surface Brightness Universe , 1999 , pp. 393 - 400
Copyright
Copyright © Astronomical Society of the Pacific 1999

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