Messenger Reveals Mercury In New Detail

MERCURY RISING

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

by Staff Writers
Baltimore MD (SPX) Jan 17, 2008
As NASA's MESSENGER spacecraft approached Mercury on January 14, 2008, it captured this view of the planet's rugged, cratered landscape illuminated obliquely by the sun. This image was taken from a distance of approximately 11,000 miles, about 56 minutes before the spacecraft's closest encounter with Mercury.

It shows a region 300 miles across including craters less than a mile wide. 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.

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MERCURY RISING

A New Face Of Mercury Revealed As Messenger Speeds By

Laurel MD (APL) Jan 15, 2008
When Mariner 10 flew past Mercury three times in 1974 and 1975, the same hemisphere was in sunlight during each encounter. As a consequence, Mariner 10 was able to image less than half the planet. Planetary scientists have wondered for more than 30 years about what spacecraft images might reveal about the hemisphere of Mercury that Mariner 10 never viewed.

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