PIA02902: The Signs of the Times
 Target Name:  Eros
 Is a satellite of:  Sol (our sun)
 Mission:  NEAR Shoemaker 
 Spacecraft:  NEAR Shoemaker
 Instrument:  Multi-Spectral Imager 
 Product Size:  750 x 477 pixels (w x h)
 Produced By:  Johns Hopkins University/APL
 Addition Date:  2000-06-10
 Primary Data Set:  NEAR Home Page
 Full-Res TIFF:  PIA02902.tif (279.4 kB)
 Full-Res JPEG:  PIA02902.jpg (40.2 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:

NEAR Shoemaker's investigation of Eros from low altitude orbit continues to bring the asteroid's history into sharper focus. This pair of images, taken April 18, 2000, from an orbital height of 99 kilometers (61 miles), shows the dissimilarity of two different regions of the asteroid. The left panel shows a region typical of Eros, whereas the right panel shows the inside of the saddle. As the images show, the saddle region has far fewer craters.

Craters are formed by the explosive impacts of asteroid fragments that have rained onto the surface over the eons. A freshly exposed surface will have fewer craters than a surface exposed to space for a longer time. The lesser number of craters in the saddle shows that it has been wiped clean, or "resurfaced," by geologic processes relatively late in Eros' history.

Built and managed by The Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, NEAR was the first spacecraft launched in NASA's Discovery Program of low-cost, small-scale planetary missions. See the NEAR web page at http://near.jhuapl.edu/ for more details.

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