Dear students, dear colleagues Please join us for tomorrow's colloquium by Shep Doeleman Massachusetts Institute of Technology, Cambridge, USA who will talk about Observing Black Holes with Schwarzschild Radius Resolution Please visit our web page http://www.colloquium.phys.ethz.ch for details. Best regards Tilman Esslinger Thomas Gehrmann Juerg Osterwalder Renato Renner