Images from Mars orbiters come home.

http://news.discovery.com/space/astronomy/nasa-mars-orbiter-beams-back-images-of-comets-tiny-nucleus-141020.htm?utm_source=twitter.com&utm_medium=social&utm_campaign=DNewsSocial reported Oct 20, 2014 the images from Mars orbiters

NASA/JPL-Caltech/Univ. of Ariz.

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7IntimateCloseEncounterswithComets:Photos

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The visitor is coming from the cold wilderness of extreme stretches of our solar system, about a light year away from our star. This region is theorized to contain many icy objects.
The comets are of two types, known orbits if categorized for their visiting frequency or period.
The relatively short or known comets, those who have fixed visiting cycles (like the famous Comet Halley). The others well not so well known or documented. The
It is sheer luck that Siding Spring, which was only discovered in January 2013, should be so accommodating and fly so close to a planet we just so happen to have an armada of robotic cameras ready to start observing.
PHOTO: Mars and Comet Unite in Stunning Close Approach Photo
HiRISE’s observation comes hot on the tail of NASA rover Opportunity’s surface image of Siding Spring shown below.
It’s observations like these that will help us better understand the mysterious nature of these enigmatic icy objects and provide us with a glimpse of what material went into building our solar system nearly 5 billion years ago.

The fuzzy object in the center of this raw and unprocessed image from Mars rover Opportunity is Comet Siding Spring as seen by Mars rover Opportunity.