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Summary
DescriptionTortola Facula in infrared.jpg
English: This high-resolution infrared image was taken during the Cassini spacecraft's closest approach to Titan on Oct. 26, 2004. These images were obtained by Cassini's visual and infrared mapping spectrometer instrument and show a bright, circular feature (8.5 degrees latitude, minus 143.5 degrees longitude) with two elongated wings extending westwards, later named Tortola Facula and dubbed "The Snail" due to the curling shape. Scientists formerly interpeted this feature as cryovolcano. The resolution in the image varies from 2.6 kilometers (1.6 miles) per pixel to 1.8 kilometers (1.1 miles) per pixel.
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]