NOAA Office of Ocean Exploration and Research, 2019 Southeastern U.S. Deep-sea Exploration. Download larger version (mp4, 13.0 MB).
Rocket ship from outer space? Nah...it's just a little helmet jelly, bopping along above the seafloor off the coast of Florida, in the Stetson-Miami Terrace Deepwater Coral Habitat of Particular Concern.