This incredible cloud which is known as a pileus or scarf cloud was seen over Haikou city in China the other day and has many people online wondering what the hell is going on. Could it be aliens? Some new crazy weather manipulation technology? Or possibly the reaction of pollution in the air?

Well, it's not faked if you were wondering that. According to meteorologists, this phenomenon is known as "cloud iridescence" and is caused by “water droplets or ice crystals in the cloud (that) diffract the light around the outside of the droplet, as opposed to bending the light through it.” But regardless, what a sight for sore eyes it is!

Can you imagine what a caveman would have thought if they saw this? Would they have thought the world is ending? Or would this be a sign from God? Because even now, with all of our knowledge, it's pretty damn incredible.