Lawrence Krauss

A scientist blames the head of a large company for an ecological disaster in South America. But when a volcano begins to show signs of erupting, they must unite to avoid a disaster.

A users' guide to the cosmos, from the Big Bang to galaxies, stars, planets and moons: where did it all come from and how does it all fit together? A primer for anyone who has ever looked up at the night sky and wondered.

Hosted by Hamish Macdonald, Q&A puts punters, pollies and pundits together in the studio to thrash out the hot issues of the week. It's about democracy in action - the audience gets to ask the questions.

Each week Bill Maher surrounds himself with a panel of guests which include politicians, actors, comedians, musicians and the like to discuss what's going on in the world.