The future has well and truly arrived in Darlington. Residents looking out of their windows in the historic market town could be forgiven for thinking extraterrestrials are paying a visit - but these "UFOs" are actually the first Amazon delivery drones in the UK. Darlington , famed for its pioneering railway history, has entered the history books once more as the launch site for Amazon Prime Air. The retail giant has rolled out a service where small items weighing less than 5lb (2.2kg) can be