Meteorite Contains Building Blocks of Life


	Meteorite Contains Building Blocks of Life

redbone

8-17-2009 2:00 AM

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tags:

science, biology, space, meteorites

redbone says:

The Murchison meteorite contains over 100 extraterrestrial amino acids and the nucleotide bases uracil and xanthine--the building blocks of proteins, DNA and RNA.

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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://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/4c685722-bd53-4822-bb12-4289b955f2c0/9F4E62F9-F85E-4FCD-A03F-77C7820C2884/" 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://en.wikipedia.org/w/index.php?title=Murchison_meteorite&oldid=304614106" href="http://en.wikipedia.org/w/index.php?title=Murchison_meteorite&oldid=304614106" style="font-size: 11px;">en.wikipedia.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://en.wikipedia.org/w/index.php?title=Murchison_meteorite&oldid=304614106"><P>The <B>Murchison</B> meteorite is named after <A title="Murchison, Victoria" href="http://en.wikipedia.org/wiki/Murchison,_Victoria">Murchison, Victoria</A>, in <A title="Australia" href="http://en.wikipedia.org/wiki/Australia">Australia</A>. It is one of the most studied <A title="Meteorite" href="http://en.wikipedia.org/wiki/Meteorite">meteorites</A> due to its large mass (&gt;100 kg), the fact that it was an observed <A title="Meteorite fall" href="http://en.wikipedia.org/wiki/Meteorite_fall">fall</A>, and it belongs to a group of meteorites rich in <A title="Organic compound" href="http://en.wikipedia.org/wiki/Organic_compound">organic compounds</A>.</P></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://en.wikipedia.org/w/index.php?title=Murchison_meteorite&oldid=304614106"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/en.wikipedia.org/img/6E733301-BDC4-4EE6-8D8D-AEFF56A23233" alt="" /></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://en.wikipedia.org/w/index.php?title=Murchison_meteorite&oldid=304614106">CM chondrites, together with the CI group, are rich in carbon and are among the most chemically primitive meteorites in our collections. Like other CM chondrites, Murchison contains abundant <A title="Calcium-aluminium-rich inclusion" href="http://en.wikipedia.org/wiki/Calcium-aluminium-rich_inclusion">CAIs</A>. Over 100 <A title="Amino acid" href="http://en.wikipedia.org/wiki/Amino_acid">amino acids</A> (some of the basic components of life) have been identified in the meteorite.</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/9F4E62F9-F85E-4FCD-A03F-77C7820C2884/blog/" title="blog or email this clip"><img src="http://content8.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>

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