A NASA Discovery mission to conduct the first orbital study
of the innermost planet
NASA logo carnegie institution logo JHU APL logo

Why Mercury?
The Mission
Gallery
Education
News Center
Science Operations
Who We Are
FAQs
Related Links
Contacts
Home

Download iPhone/iPad app Explore orbital data with quickmap Question and Answer Mercury Orbit Insertion Where is MESSENGER? Where is Mercury now? Subscribe to MESSENGER eNews



Chesterton Joins Named North Polar Craters
Click on image to enlarge.
Chesterton Joins Named North Polar Craters
Release Date: September 18, 2012
Topics: Named Craters, Polar, WAC



Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
Scale: Prokofiev has a diameter of 112 kilometers (70 miles)
Arecibo Radar Image: shown in yellow, from Harmon et al., Icarus, 211, 37-50, 2011.

Of Interest: Yesterday, the MESSENGER team learned that the International Astronomical Union (IAU) had approved the name of another crater near Mercury's north pole. Chesterton, named for the English author Gilbert Keith Chesterton (1874-1936), joins nine other craters named in August 2012 in this region. Chesterton crater is identified with a green circle in the above image, and, like the other nine newly named polar craters, also hosts radar-bright deposits that may contain water ice.

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. Visit the Why Mercury? section of this website to learn more about the key science questions that the MESSENGER mission is addressing. During the one-year primary mission, MESSENGER acquired 88,746 images and extensive other data sets. MESSENGER is now in a yearlong extended mission, during which plans call for the acquisition of more than 80,000 additional images to support MESSENGER's science goals.

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.


   

   Top  | Contacts
© 1999-2014 by JHU/APL