Dawn’s new photo of Ceres

taken 1 December 2014 from a distance of 740,000 miles (1.2 million kilometers) Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

Episodic warming of early Mars by punctuated volcanism

Itay Halevy, James W. Head III Nature Geoscience (2014) doi:10.1038/ngeo2293 published online 17 November 2014 LINK

Can We Distinguish Between Shock-Darkened and Space-Weathered Asteroids?

Kohout, Tomas; Penttila, Antti; Gritsevich, Maria; Britt, Daniel; Reddy, Vishnu; Mann, Paul; Haloda, Jakub; Halodova, Patricie; Grokhovsky, Viktor; Yakovlev, Grigoriy; Cuda, Jan; Filip, Jan; Muinonen, Karri; Zboril, Radek American Astronomical Society, DPS meeting #46, #506.02…

Linear spectropolarimetry: a new diagnostic tool for the classification and characterization of asteroids

Bagnulo S, Cellino A,Sterzik MF (2014) Monthly Notices of the Royal Astronomical Society MNRAS (January 01, 2015) 446 (1): L11-L15. doi: first published online October 22, 2014 LINK

Atmospheric mass loss during planet formation: The importance of planetesimal impacts

Hilke E. Schlichting, Re’em Sari, Almog Yalin Icarus DOI: 10.1016/j.icarus.2014.09.053 LINK

Aqueous Alteration on Asteroids: Linking the Mineralogy and Spectroscopy of CM and CI Chondrites

M.M. McAdam, J.M. Sunshine, K.T. Howard, T.M. McCoy Icarus DOI: 10.1016/j.icarus.2014.09.041 LINK Abstract CM/CI meteorites range in degree of aqueous alteration suggesting differences in initially accreted materials including water ice and possible spatial heterogeneities within…

Where Did the Ureilite Parent Body Accrete? Constraints from Chemical and Isotopic Compositions

Cyrena Goodrich, David P. O’Brien Abstract: Almahata Sitta and other polymict ureilites contain a remarkable diversity of materials, including EH, EL, OC, R- and CB chondrites, in addition to the dominant ureilitic material [1]. These…

The ancient heritage of water ice in the solar system

L. Ilsedore Cleeves, Edwin A. Bergin, Conel M. O’D. Alexander, Fujun Du, Dawn Graninger, Karin I. Öberg, Tim J. Harries LINK Science 26 September 2014: Vol. 345 no. 6204 pp. 1590-1593 DOI: 10.1126/science.1258055 “Abstract Identifying…

Recent multi-kiloton impact events: are they truly random?

C. de la Fuente Marcos, R. de la Fuente Marcos arXiv:1409.0452 revised 16 Sept 2014 ; Printed 17 September 2014 PDF LINK LINK It is customarily assumed that Earth-striking meteoroids are completely random, and that…

Painted Stone: Asteroids in the Sloan Digital Sky Survey, by Alex Parker

VIDEO (FULL HD) LINK This animation shows the orbital motions of over 100,000 of the asteroids observed by the Sloan Digital Sky Survey (SDSS), with colors illustrating the compositional diversity measured by the SDSS five-color…

Defining the Flora Family: Orbital Properties, Reflectance Properties and Age

Melissa J. Dykhuis, Lawrence Molnar, Samuel J. Van Kooten, Richard Greenberg Icarus Available online 16 September 2014 LINK

Samarium–neodymium chronology and rubidium–strontium systematics of an Allende calcium–aluminum-rich inclusion with implications for 146Sm half-life

N.E. Marks, L.E. Borg, I.D. Hutcheon, B. Jacobsen, R.N. Clayton Earth and Planetary Science Letters Volume 405, 1 November 2014, Pages 15–24 DOI: 10.1016/j.epsl.2014.08.017 Available online 29 August 2014 LINK

Sequential analysis of carbonaceous materials in Hayabusa-returned samples for the determination of their origin

Masayuki Uesugi, Hiroshi Naraoka, Motoo Ito, Hikaru Yabuta, Fumio Kitajima, Yoshinori Takano, Hajime Mita, Ichiro Ohnishi, Yoko Kebukawa, Toru Yada, Yuzuru Karouji, Yukihiro Ishibashi, Takaaki Okada and Masanao Abe Earth, Planets and Space 2014, 66:102…

The Case of the Missing Ceres Family

Andrew S. Rivkin Erik Asphaug, William F. Bottke Icarus DOI: 10.1016/j.icarus.2014.08.007 available online 23 August 2014 LINK

Chromium Valences in Ureilite Olivine and Implications for Ureilite Petrogenesis

Goodrich CA, Sutton SR, Wirick S and Jercinovic MJ (in press) Geochimica et Cosmochimica Acta Volume 122, 1 December 2013, Pages 280–305 [doi:10.1016/j.gca.2013.08.003] LINK

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