Professor Yen-Jie Lee, a glimpse into the dawn of time

Tiny particles from the dawn of time have been spotted at Switzerland's Hadron Collider. The so called 'X particles' are thought to have existed for just fractions of a second after the Big Bang almost 14 billion years ago, when many scientists say our universe was born. Last month about a hundred X particles were seen for the very first time at the European Organisation for Nuclear Research in Geneva. Professor Yen-Jie Lee is one of the scientists behind the discovery.