[GH85Carrera]

What are those red filaments in the sky? They are a rarely seen form of lightning confirmed only about 30 years ago: red sprites. This image was taken by Yuri Beletsky in 2021 from Las Campanas observatory in Chile.


"A female worker cleans the rifling of a 15-inch gun after being lifted inside the barrel in the Coventry Ordnance Works during the First World War." (Photo by IWM).