Dating the Moon-forming impact event with asteroidal meteorites

W. F. Bottke, D. Vokrouhlický, S. Marchi, T. Swindle, E. R. D. Scott, J. R. Weirich, and H. Levison Science 17 April 2015: Vol. 348 no. 6232 pp. 321-323 DOI: 10.1126/science.aaa0602 LINK Supplementary materials (PDF)

Dawn’s First Color Map of Ceres

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Jupiter’s decisive role in the inner Solar System’s early evolution

Konstantin Batygin and Greg Laughlin PNAS 2015 ; published ahead of print March 23, 2015, doi:10.1073/pnas.1423252112 LINK Supporting Information (PDF)

Large bolide disintegrates above Swiss Alps (15 March, 19:44 UTC)

Large bolide with fragmentations and detonations, at least 8.8 seconds The end of the trajectory was probably above the high Alps in Switzerland, just southsoutheast of Lake Lucerne. Update (16 March 2015): First trajectory calculation…

Chelyabinsk, Zond IV, and a possible first-century fireball of historical importance

Hartmann, W. K. (2015) Meteoritics & Planetary Science doi: 10.1111/maps.12428 LINK Comment on “Chelyabinsk, Zond IV, and a possible first‐century fireball of historical importance” William K. Hartmann, Alexander Forte, Alina SABYR Meteorit Planet Sci. ….

Paleomagnetic and rock magnetic study of the Mistastin Lake impact structure (Labrador, Canada): Implications for geomagnetic perturbation and shock effects

Gwenaël Hervé, Stuart A. Gilder, Cassandra L. Marion, Gordon R. Osinski, Jean Pohl, Nikolai Petersen, Paul J. Sylvester Earth and Planetary Science Letters doi:10.1016/j.epsl.2015.02.011 LINK

Chelyabinsk meteorite: Shock metamorphism, black veins and impact melt dikes, and the Hugoniot

D. D. Badyukov, J. Raitala, P. Kostama, A. V. Ignatiev Petrology March 2015, Volume 23, Issue 2, pp 103-115 LINK

Dawn has successfully entered an orbit around Ceres at 12:39 UTC on March 6

Meteoritical Bulletin – Categorization of falls and finds (25 Feb 2015)

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The two views of Ceres

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Chelyabinsk main mass’s current weight refined to 503.33 kg

On 2 February 2015 another precise weighing refined the current weight of the Chelyabinsk main mass as it is presented in the Chelyabinsk Museum to 503.33(3333333333) grams. In two years the main mass will be…

Modeling asteroid collisions and impact processes

Martin Jutzi, Keith Holsapple, Kai Wünneman, Patrick Michel Chapter to appear in the Space Science Series Book: Asteroids IV arXiv:1502.01844 PDF (full text) LINK

Ceres – seen by Dawn III

This animation showcases a series of images NASA’s Dawn spacecraft took on approach to Ceres on Feb. 4, 2015 at a distance of about 90,000 miles (145,000 kilometers) from the dwarf planet. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/PSI

Compound Chondrules fused Cold

Alexander Hubbard Icarus arXiv:1502.01299 PDF LINK (full text) LINK (abstract) updated: 31 March 2015 LINK (abstract) doi:10.1016/j.icarus.2015.02.030

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