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Organics Captured from Comet 81P/Wild 2 by the Stardust Spacecraft.

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Title: Organics Captured from Comet 81P/Wild 2 by the Stardust Spacecraft.
Authors: Sandford, Scott A., Aléon, Jérôme, Alexander, Conet M. O'D., Araki, Tohru, Bajt, Saša, Baratta, Giuseppe A., Borg, Janet, Bradley, John P., Brownlee, Donald E., Brucato, John R., Burchell, Mark J., Busemann, Henner, Butterworth, Anna, Clemett, Simon J., Cody, George, Colangeli, Luigi, Cooper, George, D'Hendecourt, Louis, Djouadi, Zahia, Dworkin, Jason P.
Source: Science (pre-March 2025). 12/15/2006, Vol. 314 Issue 5806, Special Section p1720-1724. 5p.
Subjects: Comets, Cosmic dust, Nitrogen, Meteor trails, Solar system, Nonmetals, Meteorites, Meteors, Achondrites
Abstract: Organics found in comet 81P/Wild 2 samples show a heterogeneous and unequilibrated distribution in abundance and composition. Some organics are similar, but not identical, to those in interplanetary dust particles and carbonaceous meteorites. A class of aromatic-poor organic material is also present. The organics are rich in oxygen and nitrogen compared with meteoritic organics. Aromatic compounds are present, but the samples tend to be relatively poorer in aromatics than are meteorites and interplanetary dust particles. The presence of deuterium and nitrogen-is excesses suggest that some organics have an interstellar/protostellar heritage. Although the variable extent of modification of these materials by impact capture is not yet fully constrained, a diverse suite of organic compounds is present and identifiable within the returned samples. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Organics Captured from Comet 81P/Wild 2 by the Stardust Spacecraft.
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  Data: <searchLink fieldCode="AR" term="%22Sandford%2C+Scott+A%2E%22">Sandford, Scott A.</searchLink><br /><searchLink fieldCode="AR" term="%22Aléon%2C+Jérôme%22">Aléon, Jérôme</searchLink><br /><searchLink fieldCode="AR" term="%22Alexander%2C+Conet+M%2E+O'D%2E%22">Alexander, Conet M. O'D.</searchLink><br /><searchLink fieldCode="AR" term="%22Araki%2C+Tohru%22">Araki, Tohru</searchLink><br /><searchLink fieldCode="AR" term="%22Bajt%2C+Saša%22">Bajt, Saša</searchLink><br /><searchLink fieldCode="AR" term="%22Baratta%2C+Giuseppe+A%2E%22">Baratta, Giuseppe A.</searchLink><br /><searchLink fieldCode="AR" term="%22Borg%2C+Janet%22">Borg, Janet</searchLink><br /><searchLink fieldCode="AR" term="%22Bradley%2C+John+P%2E%22">Bradley, John P.</searchLink><br /><searchLink fieldCode="AR" term="%22Brownlee%2C+Donald+E%2E%22">Brownlee, Donald E.</searchLink><br /><searchLink fieldCode="AR" term="%22Brucato%2C+John+R%2E%22">Brucato, John R.</searchLink><br /><searchLink fieldCode="AR" term="%22Burchell%2C+Mark+J%2E%22">Burchell, Mark J.</searchLink><br /><searchLink fieldCode="AR" term="%22Busemann%2C+Henner%22">Busemann, Henner</searchLink><br /><searchLink fieldCode="AR" term="%22Butterworth%2C+Anna%22">Butterworth, Anna</searchLink><br /><searchLink fieldCode="AR" term="%22Clemett%2C+Simon+J%2E%22">Clemett, Simon J.</searchLink><br /><searchLink fieldCode="AR" term="%22Cody%2C+George%22">Cody, George</searchLink><br /><searchLink fieldCode="AR" term="%22Colangeli%2C+Luigi%22">Colangeli, Luigi</searchLink><br /><searchLink fieldCode="AR" term="%22Cooper%2C+George%22">Cooper, George</searchLink><br /><searchLink fieldCode="AR" term="%22D'Hendecourt%2C+Louis%22">D'Hendecourt, Louis</searchLink><br /><searchLink fieldCode="AR" term="%22Djouadi%2C+Zahia%22">Djouadi, Zahia</searchLink><br /><searchLink fieldCode="AR" term="%22Dworkin%2C+Jason+P%2E%22">Dworkin, Jason P.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 12/15/2006, Vol. 314 Issue 5806, Special Section p1720-1724. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Comets%22">Comets</searchLink><br /><searchLink fieldCode="DE" term="%22Cosmic+dust%22">Cosmic dust</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrogen%22">Nitrogen</searchLink><br /><searchLink fieldCode="DE" term="%22Meteor+trails%22">Meteor trails</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+system%22">Solar system</searchLink><br /><searchLink fieldCode="DE" term="%22Nonmetals%22">Nonmetals</searchLink><br /><searchLink fieldCode="DE" term="%22Meteorites%22">Meteorites</searchLink><br /><searchLink fieldCode="DE" term="%22Meteors%22">Meteors</searchLink><br /><searchLink fieldCode="DE" term="%22Achondrites%22">Achondrites</searchLink>
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  Data: Organics found in comet 81P/Wild 2 samples show a heterogeneous and unequilibrated distribution in abundance and composition. Some organics are similar, but not identical, to those in interplanetary dust particles and carbonaceous meteorites. A class of aromatic-poor organic material is also present. The organics are rich in oxygen and nitrogen compared with meteoritic organics. Aromatic compounds are present, but the samples tend to be relatively poorer in aromatics than are meteorites and interplanetary dust particles. The presence of deuterium and nitrogen-is excesses suggest that some organics have an interstellar/protostellar heritage. Although the variable extent of modification of these materials by impact capture is not yet fully constrained, a diverse suite of organic compounds is present and identifiable within the returned samples. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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