Weekend Variety Wireless - Hour 1 - 28/07/18

First up this hour, Graeme takes a look at Science Stuff, and the life of science legend Paul Callaghan, depicted in an NZIFF film. Then, Astronomer Grant Christie joins Graeme Hill to talk the latest in astronomy news. First up the pair discuss latest goings-on with Asteroid Ryugu. They then discuss how the lake discovered inside Mars this week is a big game-changer. Then, Dr Christie gives us the rundown on Mars dust storms. Weekend Variety Wireless with Graeme Hill, 8pm - midnight Saturdays and Sundays, on RadioLIVE and streaming live to the Rova app on Android and iPhone.