ISS009-E-09954 (3 June 2004) --- Large internal waves in the Strait of Gibraltar are featured in this scene photographed by an Expedition 9 crewmember on the International Space Station (ISS). These subsurface internal waves occur at depths of about 100 meters, but appear in the sun glint as giant swells flowing eastward into the Mediterranean Sea. This image was merged with image ISS009-E-09952 to create a mosaic, which can be viewed on http://eol.jsc.nasa.gov.