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Huygens' Descent to Titan This picture is a composite of 30 images from ESA's Huygens probe. They were taken from an altitude varying from 13 kilometers down to 8 kilometers when the probe was descending towards its landing site. The images have a resolution of about 20 meters per pixel and cover an area extending out to 30 kilometers. NASA / JPL-Caltech / ESA / University of Arizona