6 of 38: This image provided by NASA of the slick was captured on Tuesday, April 27, 2010, by the Moderate Resolution Imaging Spectroradiometer on NASA's Aqua satellite. Although the slick is less obvious than it was in earlier images, that is not necessarily a sign that it is smaller or more dispersed. The ability to detect oil slicks in photo-like satellite images is very sensitive to the viewing geometrythe angles between the surface, the Sun, and the satelliteat the time of the image. Louisiana State Wildlife and Fisheries Secretary Robert Barham told lawmakers Wednesday federal government projections show a "high probability" oil could reach the Pass a Loutre wildlife area Friday night, Breton Sound on Saturday and the Chandeleur Islands on Sunday. ( (AP Photo/NASA))

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