PIA16426: Hollowed Hills
 Target Name:  Mercury
 Is a satellite of:  Sol (our sun)
 Mission:  MESSENGER
 Spacecraft:  MESSENGER
 Instrument:  MDIS - Narrow Angle
 Product Size:  1020 x 1024 pixels (w x h)
 Produced By:  Johns Hopkins University/APL
 Full-Res TIFF:  PIA16426.tif (1.046 MB)
 Full-Res JPEG:  PIA16426.jpg (114.5 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

Hollows are now known to be a relatively common feature on Mercury, dotting crater floors, walls, and peaks. The sharp walls and well-defined features of the hollows in today's featured image stand out against the muted background terrain, indicating they are substantially younger than their surroundings. Could they still be forming today?

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.

Date acquired: August 26, 2012
Image Mission Elapsed Time (MET): 254512139
Image ID: 2465342
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 34.53
Center Longitude: 282.3 E
Resolution: 29 meters/pixel
Scale: This scene is approximately 52 km (32 mi.) across
Incidence Angle: 80.3
Emission Angle: 56.0
Phase Angle: 136.3

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, MDIS acquired 88,746 images and extensive other data sets. MESSENGER is now in a year-long extended mission, during which plans call for the acquisition of more than 80,000 additional images to support MESSENGER's science goals.

These images are from MESSENGER, a NASA Discovery mission to conduct the first orbital study of the innermost planet, Mercury. For information regarding the use of images, see the MESSENGER image use policy.

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

Image Addition Date: