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US-SPACE-ASTRONOMY
This image obtained by NASA's Stardust spacecraft and released February 15, 2011 shows a side of the nucleus of comet Tempel 1 that has never been seen before. The NASA spacecraft's flyby of the comet showed erosion on the Tempel 1's surface since it skimmed by the Sun in 2005, and revealed February 15, 2011 the first clear pictures of the crater made by a Deep Impact probe. In the image, three terraces of different elevations are visible, with dark, banded scarps, or slopes, separating them. The widest of the banded slopes is about 2 kilometers (1 mile). The lowest terrace has two circular features that are about 150 meters (500 feet) in diameter. An inset on the right shows a closer view. This image was taken on February 14, 2011, at 8:39:21 p.m. PST. The spatial resolution is about 15 meters (50 feet) per pixel. NASA's Deep Impact spacecraft visited this same comet in July 2005 and also observed the presence of layers on the other side of the comet. This image shows at least 90 percent new territory. AFP PHOTO/NASA/JPL-Caltech/Cornell
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Detalii fotografie |
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Comet Tempel 1, SPACE |
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AFP / Mediafax Foto |
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16 Februarie 2011 |
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3125 x 2344 (996.92 KB) |
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