The image in the article looks more like a false horizon (change in color of sea makes it blend into the sky), as jeffmcmahan is describing. You can just about

The image in the article looks more like a false horizon (change in color of sea makes it blend into the sky), as jeffmcmahan is describing. You can just about make out the real horizon in the image. Clearer example of false horizon: https://i.imgur.com/WHzQJ3Z.png https://i.imgur.com/WHzQJ3Z.png A superior mirage would usually cause more distortion and likely wouldn't so cleanly cut out the ship. Clearer example of superior mirage: https://i.imgur.com/pa16mOk.png https://i.imgur.com/pa16mOk.png