If you hadn’t heard of that type of flying saucer before you’re not alone because we had no idea it ‘existed’ either.
But it’s apparently a thing and Harry Perton has taken a photo of the unusual object in Groningen, in the Netherlands.
The photographer only noticed the UFO, which is named after a jellyfish because of its appearance, when he got home after taking pictures in the storm.
‘I was taking photos and suddenly something flashed,’ he said.
‘I decided it must have been a strike of lightning – but back at home I saw something strange in one of the photos that I took – what looked like a UFO.’
The image, which shows an object floating in the night sky and emitting an eerie flash of green light, sparked a flurry of online debate about what it could be.