PHYSICS SEMINAR PRESENTS
The Discovery of the Accelerated Expansion of the Universe (or the Scientific Story of Creation)
by Dr. Shane Burns
Professor of Physics at Colorado College
Thursday April 18, 12 - 12:50 pm
Phys/Math Bldg, room 103
We now know that the universe is 13.7 billion years old and that it has been expanding since the beginning. The 2011 Nobel Prize was awarded for the discovery that the rate of expansion is accelerating. This expansion is propelled by a sort of antigravity. This startling discovery was made by observing distant supernova explosions. In this talk I will trace the history of scientific cosmology from its inception in the early part of the twentieth century to today with a special emphasis on our discovery of accelerated expansion. I hope to show how the interplay of theory and observation leads to a very convincing, but arguably strange, scientific story of creation.