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MESSENGER Reveals Mercury in New Detail
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MESSENGER Reveals Mercury in New Detail
Release Date: January 16, 2008
Topics: Mercury Flyby 1, NAC



As MESSENGER approached Mercury on January 14, 2008, the spacecraftís Narrow-Angle Camera on the Mercury Dual Imaging System (MDIS) instrument captured this view of the planetís rugged, cratered landscape illuminated obliquely by the Sun. The large, shadow-filled, double ringed crater to the upper right was glimpsed by Mariner 10 more than three decades ago and named Vivaldi, after the Italian composer. Its outer ring has a diameter of about 200 kilometers (about 125 miles). MESSENGERís modern camera has revealed detail that was not well seen by Mariner 10, including the broad ancient depression overlapped by the lower-left part of the Vivaldi crater. The MESSENGER science team is in the process of evaluating later images snapped from even closer range showing features on the side of Mercury never seen by Mariner 10. It is already clear that MESSENGERís superior camera will tell us much that could not be resolved even on the side of Mercury viewed by Marinerís vidicon camera in the mid-1970s.

This MESSENGER image was taken from a distance of about18,000 kilometers (11,000 miles), about 56 minutes before the spacecraft's closest encounter with Mercury. It shows a region roughly 500 kilometers (300 miles) across, and craters as small as 1 kilometer (0.6 mile) can be seen in this image.


Mission Elapsed Time (MET) of image: 108821483

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington


For information regarding the use of MESSENGER images, see the image use policy.


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