It seems the skies over America are in a strange state and this week on Taking Stock Mandy Johnston is talking about UFOs and Chinese Balloons and Aerial Mysteries - with Jeff Wise a scientific journalist about the strange goings on in American skies. And back on the ground Donald Trump was in the dock and Mandy talks to Joe Miller of the Financial Times in NYC who had a front row seat. And author Helen Edwards talks about her new book ‘From Marginal to Mainstream,’ where she examined 50 behaviours to understand why some business ideas take off and others don't.