North By Southwest

This week's edition of "North By Southwest" investigates the dark side of black holes, quasars, distant galaxies and extra-terrestial life with astronomer Dr Marek Kakula, Public Astronomer at the Royal Observatory, Greenwich in London. Dr Kakula has many years' experience as a researcher at a number of leading UK universities and is a former employee of NASA, where he worked at the Hubble Space Telescope Science Institute. Earlier this year he gave a talk on black holes at the City of Arts and Sciences, Valencia as part of their "What Is The Universe Made Of" series of lectures (02/07/12).