Dawn at Vesta: Testing the Protoplanetary Paradigm
A New Dawn Since 17 July 2011, NASA's spacecraft Dawn has been orbiting the asteroid Vesta—the second most massive and the third largest asteroid in the solar system (see the cover). Russell et al. (p. 684 ) use Dawn's observations to confirm that Vesta is a small differentiated planetary...
Published in: | Science |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science (AAAS)
2012
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1126/science.1219381 https://www.science.org/doi/pdf/10.1126/science.1219381 |
id |
craaas:10.1126/science.1219381 |
---|---|
record_format |
openpolar |
spelling |
craaas:10.1126/science.1219381 2024-10-06T13:52:52+00:00 Dawn at Vesta: Testing the Protoplanetary Paradigm Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. De Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, T. J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. 2012 http://dx.doi.org/10.1126/science.1219381 https://www.science.org/doi/pdf/10.1126/science.1219381 en eng American Association for the Advancement of Science (AAAS) Science volume 336, issue 6082, page 684-686 ISSN 0036-8075 1095-9203 journal-article 2012 craaas https://doi.org/10.1126/science.1219381 2024-09-12T04:01:31Z A New Dawn Since 17 July 2011, NASA's spacecraft Dawn has been orbiting the asteroid Vesta—the second most massive and the third largest asteroid in the solar system (see the cover). Russell et al. (p. 684 ) use Dawn's observations to confirm that Vesta is a small differentiated planetary body with an inner core, and represents a surviving proto-planet from the earliest epoch of solar system formation; Vesta is also confirmed as the source of the howardite-eucrite-diogenite (HED) meteorites. Jaumann et al. (p. 687 ) report on the asteroid's overall geometry and topography, based on global surface mapping. Vesta's surface is dominated by numerous impact craters and large troughs around the equatorial region. Marchi et al. (p. 690 ) report on Vesta's complex cratering history and constrain the age of some of its major regions based on crater counts. Schenk et al. (p. 694 ) describe two giant impact basins located at the asteroid's south pole. Both basins are young and excavated enough amounts of material to form the Vestoids—a group of asteroids with a composition similar to that of Vesta—and HED meteorites. De Sanctis et al. (p. 697 ) present the mineralogical characterization of Vesta, based on data obtained by Dawn's visual and infrared spectrometer, revealing that this asteroid underwent a complex magmatic evolution that led to a differentiated crust and mantle. The global color variations detailed by Reddy et al. (p. 700 ) are unlike those of any other asteroid observed so far and are also indicative of a preserved, differentiated proto-planet. Article in Journal/Newspaper South pole AAAS Resource Center (American Association for the Advancement of Science) South Pole Science 336 6082 684 686 |
institution |
Open Polar |
collection |
AAAS Resource Center (American Association for the Advancement of Science) |
op_collection_id |
craaas |
language |
English |
description |
A New Dawn Since 17 July 2011, NASA's spacecraft Dawn has been orbiting the asteroid Vesta—the second most massive and the third largest asteroid in the solar system (see the cover). Russell et al. (p. 684 ) use Dawn's observations to confirm that Vesta is a small differentiated planetary body with an inner core, and represents a surviving proto-planet from the earliest epoch of solar system formation; Vesta is also confirmed as the source of the howardite-eucrite-diogenite (HED) meteorites. Jaumann et al. (p. 687 ) report on the asteroid's overall geometry and topography, based on global surface mapping. Vesta's surface is dominated by numerous impact craters and large troughs around the equatorial region. Marchi et al. (p. 690 ) report on Vesta's complex cratering history and constrain the age of some of its major regions based on crater counts. Schenk et al. (p. 694 ) describe two giant impact basins located at the asteroid's south pole. Both basins are young and excavated enough amounts of material to form the Vestoids—a group of asteroids with a composition similar to that of Vesta—and HED meteorites. De Sanctis et al. (p. 697 ) present the mineralogical characterization of Vesta, based on data obtained by Dawn's visual and infrared spectrometer, revealing that this asteroid underwent a complex magmatic evolution that led to a differentiated crust and mantle. The global color variations detailed by Reddy et al. (p. 700 ) are unlike those of any other asteroid observed so far and are also indicative of a preserved, differentiated proto-planet. |
format |
Article in Journal/Newspaper |
author |
Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. De Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, T. J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. |
spellingShingle |
Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. De Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, T. J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. Dawn at Vesta: Testing the Protoplanetary Paradigm |
author_facet |
Russell, C. T. Raymond, C. A. Coradini, A. McSween, H. Y. Zuber, M. T. Nathues, A. De Sanctis, M. C. Jaumann, R. Konopliv, A. S. Preusker, F. Asmar, S. W. Park, R. S. Gaskell, R. Keller, H. U. Mottola, S. Roatsch, T. Scully, J. E. C. Smith, D. E. Tricarico, P. Toplis, M. J. Christensen, U. R. Feldman, W. C. Lawrence, D. J. McCoy, T. J. Prettyman, T. H. Reedy, R. C. Sykes, M. E. Titus, T. N. |
author_sort |
Russell, C. T. |
title |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_short |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_full |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_fullStr |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_full_unstemmed |
Dawn at Vesta: Testing the Protoplanetary Paradigm |
title_sort |
dawn at vesta: testing the protoplanetary paradigm |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1126/science.1219381 https://www.science.org/doi/pdf/10.1126/science.1219381 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Science volume 336, issue 6082, page 684-686 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.1219381 |
container_title |
Science |
container_volume |
336 |
container_issue |
6082 |
container_start_page |
684 |
op_container_end_page |
686 |
_version_ |
1812181465157337088 |