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Comment on "Organics Captured from Comet 81P/Wild 2 by the Stardust Spacecraft"
Maegan K. Spencer and
Richard N. Zare*
Sandford et al. (Reports, 15 December 2006, p. 1720) reportedon organic compounds captured from Comet 81P/Wild 2 by the Stardustspacecraft. We emphasize the difficulty in assigning the originof compounds detected diffusely along particle impact tracksand show that rapid heating of aerogel that has never been exposedto cometary particle capture can generate complex aromatic moleculesfrom low-mass carbon impurities present in the aerogel.
Department of Chemistry, Stanford University, Stanford, CA 94305–5080, USA.
* To whom correspondence should be addressed. E-mail: zare{at}stanford.edu
The editors suggest the following Related Resources on Science sites:
In Science Magazine
TECHNICAL COMMENTS
Scott A. Sandford and Donald E. Brownlee (21 September 2007) Science317 (5845), 1680d.
[DOI: 10.1126/science.1145013] |Abstract »|Full Text »|PDF »
REPORTS
Scott A. Sandford, Jérôme Aléon, Conel M. O'D. Alexander, Tohru Araki, Sasa Bajt, Giuseppe A. Baratta, Janet Borg, John P. Bradley, Donald E. Brownlee, John R. Brucato, Mark J. Burchell, Henner Busemann, Anna Butterworth, Simon J. Clemett, George Cody, Luigi Colangeli, George Cooper, Louis D'Hendecourt, Zahia Djouadi, Jason P. Dworkin, Gianluca Ferrini, Holger Fleckenstein, George J. Flynn, Ian A. Franchi, Marc Fries, Mary K. Gilles, Daniel P. Glavin, Matthieu Gounelle, Faustine Grossemy, Chris Jacobsen, Lindsay P. Keller, A. L. David Kilcoyne, Jan Leitner, Graciela Matrajt, Anders Meibom, Vito Mennella, Smail Mostefaoui, Larry R. Nittler, Maria E. Palumbo, Dimitri A. Papanastassiou, François Robert, Alessandra Rotundi, Christopher J. Snead, Maegan K. Spencer, Frank J. Stadermann, Andrew Steele, Thomas Stephan, Peter Tsou, Tolek Tyliszczak, Andrew J. Westphal, Sue Wirick, Brigitte Wopenka, Hikaru Yabuta, Richard N. Zare, and Michael E. Zolensky (15 December 2006) Science314 (5806), 1720.
[DOI: 10.1126/science.1135841] |Abstract »|Full Text »|PDF »|Supporting Online Material »
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Mass Spectrometry Special Feature: Laser mass spectrometric detection of extraterrestrial aromatic molecules: Mini-review and examination of pulsed heating effects.
