2018 Jellyfish-Like UFO Observed via Thermal Imaging Over an Iraqi US Military Base

To the point

An unidentified, jellyfish-like aerial object appeared over a U.S. base in Iraq in 2018, visible only on thermal imaging as heat signatures swung between hot and cool, possibly using cloaking or metamaterials, which then dived into water for about 20 minutes before reappearing and triggering international interest and a range of explanations from experimental aircraft to extraterrestrial technology.