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Us-Galileo-Io-02
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Us-Galileo-Io-02
This picture of Jupiters volcanic moon Io released by NASA 06 March 2000 combines high-resolution black and white images taken by NASAs Galileo spacecraft on 10 October 1999, with lower resolution color images taken by Galileo 03 July 1999 to help scientists better understand the relationships between the different surface materials and the underlying geologic structures. For example, there is red material, which is often associated with areas where lava is erupting onto the surface and is thought to be a compound of sulfur, around the margin of Monan Patera (the elongated caldera just to the lower right of center). The broad circle of bright, white material (just to the left of center) is thought to be sulfur-dioxide which is being deposited from the plume Amirani. The lengths of the shadows cast by the mountains make it possible to estimate the mountains heights. The southern mountain on the far right of the mosaic is approximately 8 kilometers (26, 000 feet) high and the mountain to the north of it is approximately 4 kilometers (13, 000 feet) high. North is to the top and the image is centered at 22.8 degrees north latitude and 109.5 degrees west longitude. The higher resolution images have a sharpness of about 500 meters (or yards) per picture element and they are illuminated from the left. These images were taken at a range of 25, 000 kilometers (15, 500 miles). The color images are illuminated from almost directly behind the spacecraft. The color images were taken at a distance of about 130, 000 kilometers (81, 000 miles) and show a resolution of 1.3 kilometers (0.8 miles) per picture element. AFP PHOTO/NASA / AFP PHOTO / NASA
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EDITORS COMMENTS
This photo print, titled "Us-Galileo-Io-02" offers a mesmerizing glimpse into the volcanic moon of Jupiter, Io. Released by NASA on 6 March 2000, this composite image combines high-resolution images captured by NASAs Galileo spacecraft on 10 October 1999 with lower resolution color images taken on 3 July 1999. The purpose behind this collaboration was to enhance scientists' understanding of the various surface materials and underlying geologic structures present on Io. One notable feature in the photograph is the presence of red material encircling Monan Patera, an elongated caldera situated just below the center. This reddish hue signifies areas where lava erupts onto the moon's surface and is believed to be a compound of sulfur. Another striking element is the broad circle of bright white material to the left of center, which results from sulfur dioxide being deposited from Amirani's plume. The shadows cast by mountains within this image enable scientists to estimate their heights accurately. For instance, the southern mountain located at the far right measures approximately 8 kilometers (26,000 feet) in height while its northern counterpart stands at around 4 kilometers (13,000 feet). With north positioned at the top and centered at coordinates 22.8 degrees north latitude and 109.5 degrees west longitude, these high-resolution images were taken from a distance of about 25,000 kilometers (15,500 miles). In contrast, color images were captured from roughly 130,000 kilometers (81,000 miles) away with a resolution of approximately1.3 kilometers (0.8 miles) per picture element. This awe-inspiring snapshot provides valuable insights into Io's complex terrain while showcasing NASA's commitment to unraveling celestial mysteries beyond our planet's boundaries.
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