Bearded, profoundly deaf and somewhat eccentric, Tsiolkovsky's theoretical work means he is, for many, the "father of space travel". He died in 1935, and so never saw his research come to fruition.

To discuss Tsiolkovsky's life and achievements, Matthew Parris is joined by Peter Frankopan, Professor of Global History at Oxford and author of the international best-seller, The Silk Roads: A New History of the World. Matthew's other guest is Doug Millard, Curator of Space Technology at the Science Museum.Producer: Chris Ledgard