North By Southwest

This week's edition of "North By Southwest" investigates the dark side of black holes, quasars, distant galaxies and extraterrestial life with astronomer Dr Marek Kakula, Public Atronomer 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. He recently 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.