Also in the programme: NASA says it has successfully flown a space probe closer to the sun than ever before - one of its scientists tells us what happens next; and this year’s Booker Prize winning novelist Samantha Harvey and the retired astronaut Cady Coleman discuss life on the International Space Station.

(Photo: Houthi supporters protest against the USA and Israel in Sana'a, Yemen. Credit: YAHYA ARHAB/EPA-EFE/REX/Shutterstock)