‘We’re all having to catch up’: NATO scrambles for drones that can survive the Arctic
Mads Petersen, owner of Greenland-based startup Arctic Unmanned, sat in a car to keep warm while he tested a small drone at minus 43 degrees Celsius (minus 45 degrees Fahrenheit).
Independently funded jet’s sound barrier mark revives talk of commercial supersonic travel
An aircraft developed by Boom Supersonic has become the first independently funded jet to break the sound barrier.