US space craft blasts off from Florida carrying classified experiments

A US Space Force aircraft has taken off from Florida on a secret mission which could last years. The reusable plane is carrying classified experiments on board. The vessel was delivered into orbit atop a SpaceX Falcon rocket. The launch was delayed by more than two weeks following technical issues and poor weather. The nine-metre-long craft is unmanned and will conduct a number of experiments including how the conditions of space affect plant seeds.