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Dark matter and dark energy: The critical questions

Conference ·
OSTI ID:804699

Stars account for only about 0.5% of the content of the Universe; the bulk of the Universe is optically dark. The dark side of the Universe is comprised of: at least 0.1% light neutrinos; 3.5% {+-} 1% baryons; 29% {+-} 4% cold dark matter; and 66% {+-} 6% dark energy. Now that we have characterized the dark side of the Universe, the challenge is to understand it. The critical questions are: (1) What form do the dark baryons take? (2) What is (are) the constituent(s) of the cold dark matter? (3) What is the nature of the mysterious dark energy that is causing the Universe to speed up.

Research Organization:
Fermi National Accelerator Lab., Batavia, IL (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC02-76CH03000
OSTI ID:
804699
Report Number(s):
FERMILAB-Conf-02/283-A
Country of Publication:
United States
Language:
English

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