Space Highlights of 2017

Richard Hollingham and Sue Nelson are joined by space journalist Sarah Cruddas and rocket insurer, David Wade, to discuss 2017 and look ahead to 2018 in space. Featuring genetically engineered astronauts, Cassini and giant private rockets, it also includes the second part of our interview with Apollo 15 astronaut, Al Worden. He talks about his pioneering spacewalk, difficult homecoming, life after the Moon and reveals how he feels about his commander.