Possibly one of the coolest images you’ll ever see, lightning sprites are one of the most amazing phenomena on the planet. They are large-scale electric discharges that occur within the mesosphere, usually high above the thunderstorm clouds (or cumulonimbus clouds). This gives us the visual shapes flickering in the night sky. Those come thanks to discharges of positive lightning between an underlying thundercloud and the ground. These sprites can get pretty huge too, often 31 to 56 miles. One of the most mind-blowing science photos ever taken of a lightning sprite can be seen above. It’s called the Jellyfish Lightning Sprite, and we’re sure you can see why.