SL4-137-3721 (February 1974) --- Plankton blooms and color variations in the Falkland Current east of the Argentina coast in the South Atlantic Ocean as seen from the Skylab space station in Earth orbit. This picture was taken by one of the Skylab 4 crewmen using a hand-held 70mm Hasselblad camera. The Skylab 4 crew made many observations of the Falkland Current and related phenomena. This current flows north and northeastward along the Argentine coast near 40 degree south latitude where it meets the Brazil Current and the two swing eastward. The study of such photographs as this one can add significantly to our knowledge and understanding of the oceans. Photo credit: NASA