A photo captured from the International Space Station that shows ripples in the clouds over the Atlantic Ocean has sparked a range of theories.
The image was taken in early November according to NASA and since its publication explanations have included aliens flying a UFO, super sonic weapons testing, a particle device being used to control the weather or a top secret NASA spacecraft.
NASA is likely to disagree with all these explanations as it is regularly spotted a range of fascinating weather-related phenomena.
The images were first spotted on the NASA website by Blake and Brett Cousins, who run the conspiracy theorist YouTube channel thirdphaseofmoon.
Both of the YouTubers agree that "whatever it is, it is massive". Hear their thoughts below: