Astronaut Andreas Mogensen has been taking spectacular images of a rare atmospheric phenomenon called "red sprites." The existence of these Transient Luminous Events was hotly debated by scientists for decades, but the overwhelming evidence has piled up. These things are real. They appear above thunderclouds, about 40-80 km above the surface of the Earth, and can measure dozens of kilometers across. They're not easily seen from Earth, but space gives the perfect view.

https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/New_images_of_rare_thunder