New Delhi: A mesmerizing video capturing a vibrant red cloud hovering over Cape Town has ignited speculation about unidentified flying objects (UFOs) on social media. The video, which has gone viral, shows a large, pinkish-red cloud formation above the city, with cars driving below for perspective.Unusual cloud creates social media buzzThe unusual cloud has sparked widespread curiosity and discussion online. Numerous social media users have shared the video and expressed their fascination. Some even posted pictures of similar cloud formations theyve witnessed.What are lenticular cloudsWhile the UFO theories are captivating, the red cloud is more likely a natural phenomenon known as a lenticular cloud. These clouds typically form in the troposphere, often parallel to the wind direction, and can resemble a lens or saucer due to their smooth, rounded shape.How are lenticular clouds formedLenticular clouds arise when moist, stable air flows over a large eddy, typically caused by mountains or other obstructions. As the air cools at the crest of the wave, it can condense and form the cloud. These clouds can sometimes produce stunning iridescent colors along their edges.Its a Lenticular CloudThey form when the air is stable and winds blow across hills and mountains from the same or similar direction at different heightsThey look like an alien spaceship in disguise… pic.twitter.com/YJiLWvkFAG— BrainXpansion (@BrainXpansion) June 1, 2024Not the first timeLenticular clouds have a history of being mistaken for UFOs due to their unusual appearance. They are not commonly seen over flat terrain, so many people may not be familiar with them.