Controversial English astronomer who coined the term the "Big Bang Theory" live on the BBC Radio.
American sociologist internationally known for his work related to the sociology of religion.
Canadian-American author and recipient of the Pulitzer Prize, the Nobel Prize and the National Medal of Arts.
American biophysicist best known for his breakthroughs in genetic research and as a founder of the Human Genome Project.
Scottish explorer, professor, journalist and peace advocate who is credited with developing science reporting in Britain.
Belgian-Chinese author and doctor, noted for her personal understanding of China's political, social and economic landscape.