ドローンにライトをつけて長時間露光。

Long Exposure Photos Capture the Light Paths of Drones Above Mountainous Landscapes | Colossal
http://www.thisiscolossal.com/2018/03/light-paths-of-drones-by-reuben-wu/

Light-Painted Shapes and Long Exposure Landscapes | ExposureGuide.com
https://www.exposureguide.com/light-painted-shapes-and-long-exposure-landscapes/