NASA's Aqua satellite flew over the Gulf of Mexico on Thursday, June 10th, 2010 and the satellite's Moderate Resolution Imaging Spectroradiometer (MODIS) instrument captured this image of the thickest part of the oil slick. In the image, the oil slick in the Gulf of Mexico is positioned in sunglint. In the sunglint region - where the mirror-like reflection of the Sun gets blurred into a wide, bright silvery-gray strip - differences in the texture of the water surface may be enhanced. In the thickest part of the slick, oil smooths the water, making it a better "mirror." Areas where thick oil cover the water are nearly white in this image. Additional oil may also be present. ( NASA Goddard Space Flight Center