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The Department of Physics & Astronomy Colloquium Speaker Series presents: Our Universe: the known, unknown and some speculations with Dr. Saurya Das, Department of Physics & Astronomy, University of Lethbridge.
Thursday, March 18, from 9AM to 10:15AM
Join us on Zoom: uleth.zoom.us/j/99069795964
In this lecture I will discuss Our Universe is simple at scales larger than a few hundred megaparsecs: it is smooth, homogeneous, isotropic, spatially flat, and expanding at an accelerating rate, following the laws of general relativity. Yet it presents a number of unresolved problems. These include the origin and fate of our Universe, nature of its main constituents - dark matter and dark energy, and the mechanism behind its high degree of homogeneity, isotropy and flatness. I will describe success and failures of some of the theories which try to address these, and will also present some new ideas which attempt to explain the above.
Contact:
Catherine Drenth | catherine.drenth@uleth.ca | (403) 329-2280 | uleth.ca/artsci/physics-astronomy