Dark matter and dark energy: The critical questions

Conference · Tue Nov 19 00:00:00 EST 2002

OSTI ID:804699

Turner, Michael S

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. (FNAL), Batavia, IL (United States)
• 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; TRN: US0300758
• Resource Relation: Conference: Proceedings of Workshop on Hubble's Science Legacy: Future optical UV astronomy from Space, Chicago, IL (US), 04/02/2002--04/05/2002; Other Information: PBD: 19 Nov 2002
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTRONOMY
BARYONS
NEUTRINOS
NONLUMINOUS MATTER
STARS
UNIVERSE