Mercury’s Lunacy

 

Mercury's Smooth Craters
Mercury's Smooth Craters

This image, chosen as the Astronomy Picture of the Day, shows a view of Mercury’s cratered surface that is remarkably similar to our own moon’s terrain. This hints at a similar volcanic past, with lava flows filling in craters and smoothing their surfaces over.

 

This image was taken in October of 2008 by the MESSENGER satellite, destined to become the first to orbit Mercury in 2011.

Image credit: MESSENGERNASAJHU APLCIW

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