A Black Hole Overflows From Galaxy Centaurus A. generated from the combined data of the Atacama Pathfinder Experiment (APEX) telescope in Chile and the Chandra X-ray Observatory.
A Black Hole Overflows From Galaxy Centaurus A. generated from the combined data of the Atacama Pathfinder Experiment (APEX) telescope in Chile and the Chandra X-ray Observatory.

Which way do comets tails face? Does dark matter exist? Where did the universe come from and what is it made of? What’s at the end of the universe? Dr Paul Francis discusses some of the ‘greatest unsolved mysteries of the universe’ at The Australian National University on 31 March 2010.