Ammonia-Water Volcanoes on Pluto's moon Charon


	Ammonia-Water Volcanoes on Pluto's moon Charon

JohnWaterman

7-19-2007 11:38 AM

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tags:

astronomy, pluto, charon, volcanism, cryovolcanism, solar system

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/6316c248-94af-406e-b462-870e44fc6f7e/C4D992BA-D76D-4B14-B836-A3130379CDED/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.planetary.org/news/2007/0718_Ice_Crystals_on_Plutos_Moon_Charon.html" href="http://www.planetary.org/news/2007/0718_Ice_Crystals_on_Plutos_Moon_Charon.html" style="font-size: 11px;">www.planetary.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.planetary.org/news/2007/0718_Ice_Crystals_on_Plutos_Moon_Charon.html"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/www.planetary.org/img/1F9CB036-2C9B-456F-84C6-6C8B7E2648F7" alt="Charon, icy volcano world?" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.planetary.org/news/2007/0718_Ice_Crystals_on_Plutos_Moon_Charon.html"><P class="intro"><A href="http://www.planetary.org/explore/topics/pluto/">Pluto</A>'s companion Charon might be covered with active volcanoes
	  of ammonia-rich water spewing forth from the moon's deep interior.  Astronomers
	  at one of the world's great telescopes have separated Charon's dim light from
	  Pluto's and discovered that large areas of the moon's surface are plastered
	  with deposits of crystalline water and ammonia hydrate ice.   Such crystalline
	  materials can't last long on an airless world before cosmic rays age and destroy
	  their ordered structure, so they must be replenished regularly.  "Some
	  mechanism is renewing Charon's surface, and cryovolcanism is the most probable
	  of the possible mechanisms," write Jason Cook, Steven Desch, Ted Roush,
	  Chad Trujillo, and Tom Geballe in a paper they published this week in <EM>The
	  Astrophysical Journal</EM>.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/C4D992BA-D76D-4B14-B836-A3130379CDED/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>