Our Changing World for Thursday 2 July 2015

9:57 PM.Geologist Malcolm Laird and surveyor Peter Otway reminisce during the 2014 IceFest about their early visits to Antarctica in the 1960s Read more Audio

9:55 PM.New Zealand and Italian researchers have confirmed that Type C killer whales from Antarctica travel to and from northern New Zealand Read more Audio, Gallery

9:46 PM.The University of Otago SWIFT study is following 250 people for 2 years as they try popular diet and exercise programmes such as the Paleo diet, the 5:2 fasting diet, and high intensity exercise. Read more Audio

9:34 PM.As NASA's Curiosity rover discovers liquid water on Mars, astrophysicist Duncan Steel discusses what that might mean for life on Mars. Read more Audio

9:20 PM.Understanding physics and material engineering are as important as artistic skill in a technology that spans false teeth, prostheses and forensic investigations Read more Audio

9:06 PM.Marine scientists in New Zealand make a significant contribution to a global register of marine life. Read more Audio, Gallery