Austrian F1 star Niki Lauda dies at 70

The three-time world champion is famous for a remarkable recovery from a near-fatal crash. The legendary Austrian took the title for Ferrari in 1975 and 1977 and McLaren in 1984. We hear from his friend, British Formula 1 driver Sir Jackie Stewart.

Also on the programme: Possible new evidence emerges of the Syrian government's careful planning of war atrocities; and research into the Bonobo chimpanzee, suggesting pushy mothers organise the sex lives of their male offspring.

(Photo: Niki Lauda at Shanghai International Circuit in 2017. Credit: Clive Mason/Getty Images)