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blobrana
06-13-08, 01:14 PM
Scientists have confirmed for the first time that an important component of early genetic material which has been found in meteorite fragments is extraterrestrial in origin, in a paper published on 15 June 2008.

Read more (http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/newssummary/news_13-6-2008-14-44-59?newsid=38534)

draqon
06-13-08, 01:16 PM
"may have come"...until we actually find a meteorite with extra-terrestrial component of early genetical material, the claims of were it all came from are all but speculations.

blobrana
06-14-08, 11:54 AM
See also
http://www.sciforums.com/archive/index.php/t-79508.html

kaneda
06-16-08, 01:46 PM
dragon

The analysis shows that the nucleobases contain a heavy form of carbon which could only have been formed in space. Materials formed on Earth consist of a lighter variety of carbon.

draqon
06-16-08, 02:34 PM
kaneda, what isotope?

blobrana
06-16-08, 07:51 PM
"The Murchison meteorite is named after Murchison, Victoria, in Australia. Fragments of the meteorite fell near the village on 28 September 1969. The meteorite belongs to the CM group of carbonaceous chondrites"

http://en.wikipedia.org/wiki/Murchison_meteorite

BTW,
i guess a high proportion of Carbon-13.