Amazon set to expand drone delivery of lightweight packages to 500 US cities

Millions more people may be able to get smaller, lightweight Amazon packages delivered by drones by the end of the year under a plan the company announced Thursday to expand the airborne shipping to suburban areas in nearly 500 U.S. cities. Amazon said in news release that customers could receive the drone deliveries in as fast as 30 minutes, The drones can carry packages up to five pounds. The…