Fireflies and lightning sprites. | Nature by JJ A photographer has revealed the journey he went on to capture an incredible photo of a rare form of lightning sprites. Lightning sprites, formally known as transient luminous events, are a type of upper-atmospheric lightning that occurs some 50 miles above Earth in a layer called the mesosphere. They have fascinated photographers, scientists, and even astronauts on board the International Space Station . Sprites were first recorded on camera in 1989, and are still poorly understood. Very few photographers have captured sprites in great detail. And the most sought-after kind of sprite, a jellyfish, is one of the most uncommon. A smaller lightning sprite. Nature by JJ JJ is a photographer from northern Australia who was out with his friend Danny a few months back, trying to capture lightning sprites. While Danny was able to capture one , JJ missed the split-second event and so made it his mission to capture one himself.…