Nasa’s Artemis mission and the future of space travel

Yesterday, the Artemis One Rocket, the biggest rocket ever developed by Nasa was meant to be launched. However, the launch had to be postponed due to a technical issue. Today’s Martha Kearney speaks to Lord Martin Rees, the Astronomer royal and former president of the Royal Society, about the rocket's mission and the future of space travel. (Image: Artemis One in front of a full moon, REUTERS/Joe Skipper TPX IMAGES OF THE DAY)