By Walt Hickey Get To The Chopper A 4-pound solar-powered helicopter successfully endured its first nights on Mars, having been deposited by the Perseverance rover ahead of a first planned flight on April 11. The $85 million drone is the first helicopter to go to a non-Earth world, and carries two cameras to document the planned series of flights of ever-increasing lengths around the Jezero Crater over the next 31 Martian days. The drone has four rotor blades that can hit up to 2,537 RPM, and if it works out it will presumably become the hot stocking stuffer for Martians in short order.