Evidence has been accumulating for several decades that many galaxies harbor central mass concentrations that may be in the form of black holes with masses between a few million to a few billion times the mass of the Sun.


In this public lecture, Professor Genzel discusses measurements over the last two decades, employing high resolution infrared and radio imaging and spectroscopy on large ground-based telescopes that prove the existence of such a massive black hole in the center of our Milky Way, beyond any reasonable doubt. These data also provide key insights into its properties and environment.

This event is brought to you by the Australian Institute of Physics and the Black Hole Society and took place on Monday 27 July 2009. Hosted by the Australian National University, Canberra, Australia.