Max Planck Lectures
Professor Lord Martin Rees | Trinity College, Cambridge
Date: tba Autumn 2014
Venue: tba, Bonn
Professor Sir Roger Penrose | University of Oxford .
Are we Seeing Signals from Before the Big Bang? Recent results from WMAP and Planck
Date: 21 November 2013
Venue: "Hörsaal I" Main University of Bonn Building, Am Hof 1, 53113 Bonn
Conformal cyclic cosmology (CCC), initially proposed in 2005, takes what we currently regard as the entire history of the Universe, from its Big-Bang origin (but without any inflationary phase) to its final exponential expansion, to be but one aeon of a continual succession of such aeons. The big bang of each is taken to be a conformal continuation of the exponentially expanding remote future of the previous one via an infinite metric rescaling. A positive cosmological constant (dark energy) and some primordial scalar material (dark matter) are both essential to CCC’s consistency. The 2nd law of thermody-namics is CCC’s driving concept, and its consistency depends upon information loss in the quantum evaporation of black holes. Supermassive black hole encounters in the aeon previous to ours would have important observational implications for CCC, detectable within the cosmic microwave background. Recent evidence for this in both the WMAP and Planck satellite data will be presented.
Professor Jocelyn Bell Burnel
Reflections on the discovery of pulsars | Institute of Physics
Date: 21 October 2010
Venue: "Festsaal", Bonn University main building
I will give a short account of the discovery of pulsars (pulsating radio stars) and recount some other instances where pulsars were nearly discovered. I will finish with some reflections on the lessons that can be drawn from these stories.