This autumn Wellcome Collection joins forces with the BBC World Service to host some of the biggest names in world science. Join philosopher AC Grayling to test them on the social impacts of their discoveries and explore the frontiers of scientific knowledge.

Tejinder Virdee is a physicist at Imperial College and at CERN in Geneva where he works on the Large Hadron Collider project. Join him in conversation with AC Grayling to find out more about the most powerful physics experiment ever built, and how he hopes to re-create the conditions just after the Big Bang to answer fundamental questions of science and the universe itself.

This event is free. Visit the website to book your e-ticket.

This event will be broadcast by the BBC World Servicein December 2009.