September 06, 2014
Image Mission Elapsed Time (MET):
Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
The left-to-right field of view in this image is about 24 km (15 mi.) across
North is down in this image.
Welcome to Zeami crater!
We've been here before
, because Zeami has a plethora of interesting features°a portion of an inner peak ring
, terraced walls
, and hollows
. But in the top left of this view, we can see something else on its smooth interior: long, narrow troughs, some of which are arcuate. These troughs may be graben
, linear depressions that are fault-bounded. They may have formed here as they did elsewhere, the result of cooling and contraction
of impact melt
This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's surface at resolutions much higher than the 200-meter/pixel morphology base map. It is not possible to cover all of Mercury's surface at this high resolution, but typically several areas of high scientific interest are imaged in this mode each week.
The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation
are unraveling the history and evolution of the Solar System's innermost planet. In the mission's more than three years of orbital operations, MESSENGER has acquired over 250,000 images and extensive other data sets. MESSENGER is capable of continuing orbital operations until early 2015.
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.