The Australian market has fallen from a morning rally to trade lower this afternoon as a sell-off in gold mining stocks weighs down the key index. Travel stocks are also taking a hit today as COVID-19 case numbers surge on the east coast. Flight Centre announced it has acquired Texas-based Compli.ai and its browser extension, Shep, in a bid to strengthen its tech offering by implementing the Shep software to augment the user experience on third party websites. A spotlight on Rio Tinto as the metals and mining giant today announced it has acquired the Rincon lithium project in Argentina from Rincon Mining for 825 million US dollars to accelerate its lithium push. The Squid Game ?Dalgona Challenge? involving cutting out shapes from a thin piece of honeycomb, has been named as the most viral food challenge of 2021.