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Pasadena CA (JPL) May 04, 2010 The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft captured this image of the growing oil spill in the Gulf of Mexico on May 1, 2010. On April 20, 2010, an explosion destroyed the Deepwater Horizon oil platform operating in the Gulf of Mexico 80 kilometers (50 miles) offshore, resulting in substantial loss of life and releasing 5,000 barrels of oil per day into the water. The huge oil slick was being carried towards the Mississippi River Delta, and was expected to reach the Louisiana, Alabama, and Mississippi shores as early as Monday, May 3. This ASTER image is located at 29.0 degrees north latitude, 88.3 degrees west longitude and covers an area measuring 79.1 by 103.9 kilometers (49 by 64.4 miles), about 32 kilometers (20 miles) west of the mouth of the Mississippi River delta. No land is visible in the image. The varying shades of white in the image reflect different thicknesses of oil (the whiter, the thicker the oil). The source of the oil spill is visible as the bright white area in the bottom center of the image. The thickest part of the spill extends vertically from it, appearing somewhat like the ash plume of an erupting volcano. The wispy patterns of the oil spill reflect the transport of the oil by waves and currents.
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Satellites, DNA And DolphinsWashington DC (SPX) May 04, 2010 Using DNA samples and images from Earth-orbiting satellites, conservationists from Columbia University, the Wildlife Conservation Society, the American Museum of Natural History, and Fundacion AquaMarina, are gathering new insights about the franciscana-a poorly known coastal dolphin species of eastern South America-in an effort to understand populations and conserve them. The study, one o ... read more |
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