Professor Stephen Hawking, Hubert de Givenchy, Michele Hanson, Sir John Sulston, Sir Ken Dodd

Photo: Professor Stephen HawkingMatthew Bannister onProfessor Stephen Hawking, one of the world's best known scientists who carried out pioneering research into black holes. The Astronomer Royal, Sir Martin Rees pays tribute.Hubert de Givenchy, the French fashion designer who dressed Audrey Hepburn.Michele Hanson who wrote a popular newspaper column about her struggles to bring up her teenage daughter. That daughter - Amy - pays tribute.Sir John Sulston, the biologist who led the project to sequence the human genome.And the comedian Sir Ken Dodd, whose shows could last into the early hours of the morning.Archive clips from:TODAY PROGRAMME, RADIO 4 14/3/2018; THE KEY TO THE UNIVERSE:THE SEARCH FOR THE LAWS OF CREATION, BBC TV 27/01/1977; KEN DODD:HOW TICKLED I'VE BEEN, RADIO 2 03/11/2007; DESERT ISLAND DISCS, RADIO 4 03/06/1990; HOME TRUTHS, RADIO 4 03/01/2004; LATE NIGHT WOMAN’S HOUR, RADIO 4 26/05/2017; THE LIFE SCIENTIFIC, RADIO 4 29/11/2011; DESERT ISLAND DISCS, RADIO 4 13/05/2001