UNSOLVED PROBLEMS
in Astrophysics and Cosmology
an Invitational Workshop in Budapest
June 29, 2014 - July 5, 2014
Eötvös University, Budapest, Hungary
Public Talk

John Peacock will deliver a public talk titled "Revolutions in Cosmology: 1912­‐2014" on the 3rd of July at 7pm in the headquarters of the Hungarian Academy of Sciences. The building is interesting in itself, so we will arrive back from Balaton to Budapest in time to be able to tour the building together before the public talk.

Abstract:

The modern understanding of the universe began to take shape only just over a century ago. Since then, we have demonstrated observationally that stars are collected into galaxies, all of which participate in an expanding mass distribution. This leads to a picture of an evolving universe emerging from a hot and dense early state, which we are able to study directly through the microwave background. Until around 30 years ago, this picture generated many puzzles with no apparent answers, concentrating around initial conditions, and how the expanding universe was set up in such a special state. But in principle inflationary cosmology offers a solution, featuring quantum processes operating when the universe was dominated by a large vacuum density. The subject now stands on the brink of verifying this theory directly, giving a window into an era when the universe was over 50 powers of 10 smaller than today. Remarkably, all of this has been achieved within a single human lifetime.


The Building:


Directions:

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