Ocean surface currents from the MIT/NASA-JPL ECCO2 collaboration and visualized by the NASA Goddard Scientific Visualization Studio. The animation nicely highlights the energetic turbulent ocean surface currents that are present in the real ocean but are not directly visible to the eye. Numerous people have also remarked that the visualization evokes the Starry Night by Vincent van Gogh.
This video shows a visualization of data gathered by NASA between June 2005 and December 2007. It was created with the goal of creating a “simple, visceral experience” without any narration or other information. It’s pretty interesting and if you know your geography you can spot some well known currents and other fascinating phenomena, like several large gyres among others.