- Departments of Astronomy & Astrophysics and of Physics Enrico Fermi Institute, The University of Chicago Chicago, IL 60637-1433, USA
- NASA/Fermilab Astrophysics Center Fermi National Accelerator Laboratory Batavia, IL 60510-0500, USA
- ? Supported by the US Department of Energy (at Chicago and Fermilab) and by the US NASA through grant NAG 5-2788 at Fermilab.
For two decades the hot big-bang model as been referred to as the standard cosmology - and for good reason. For just as long cosmologists have known that there are fundamental questions that are not answered by the standard cosmology and point to a grander theory. The best candidate for that grander theory is inflation + cold dark matter. It holds that the Universe is flat, that slowly moving elementary particles left over from the earliest moments provide the cosmic infrastructure, and that the primeval density inhomogeneities that seed all the structure arose from quantum fluctuations. There is now prima facie evidence that supports two basic tenets of this paradigm. An avalanche of high-quality cosmological observations will soon make this case stronger or will break it. Key questions remain to be answered; foremost among them are: identification and detection of the cold dark matter particles and elucidation of the dark-energy component. These are exciting times in cosmology!
- 1 - sciences appliquees, technologies et medecines ; 2 - sciences exactes et technologie ; 3 - terre, ocean, espace ; 4 - astronomie
- 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Nuclear and High Energy Physics
- 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - Atomic and Molecular Physics, and Optics