Rainbow Children Mark examines the evidence from social scientists and whether more research matters to the growing numbers of children from same sex couples. Sundrop Farm Anja and Simon visit an unlikely location for a sustainable energy world first, a huge greenhouse on the edge of the desert in South Australia. Air Operations Simulator Research Centre Ruben takes flight at the Air Operations Simulator Centre in Melbourne. Algorithm of Love Simon takes a look at how dating websites use complex maths to find you your perfect match.