The 23rd Winter Olympics are underway in Pyeongchang, South Korea.  We look at how fake snow is made and the effects of climate change on snow sports with professor Marius Mayer of the Ernst Moritz  Arndt-University in Greifswald, he tells us more. In Unscience, mining other planets for diamonds could be a thing of the future. Lastly, Professor Robert Millar from the University of Pretoria explains his work in reproductive neuroendocrinology and how it’s been successfully used in treating life-threatening diseases.