High early solar activity inferred from helium and neon excesses in the oldest meteorite inclusions
L. Kööp, P. R. Heck, H. Busemann, A. M. Davis, J. Greer, C. Maden, M. M. M. Meier & R. Wieler Nature Astronomy (2018) Published: 30 July 2018 LINK “Astronomical observations show that early in…
High-temperature Dust Condensation around an AGB Star: Evidence from a Highly Pristine Presolar CorundumOPEN ACCESS
Aki Takigawa, Rhonda M. Stroud, Larry R. Nittler, Conel M. O’D Alexander, Akira Miyake A. Takigawa et al 2018 ApJL 862 L13 PDF (OPEN ACCESS) “Corundum (α–Al2O3) and amorphous or metastable Al2O3 are common components…
Pre-airburst Orbital Evolution of Earth’s Impactor 2018 LA: An UpdateOPEN ACCESS
C. de la Fuente Marcos,R. de la Fuente Marcos PDF (OPEN ACCESS) Accepted for publication in Research Notes of the AAS Submitted: 22 July, 2018 “Apollo meteoroid 2018 LA has become only the third natural…
Ti isotopic evidence for a non-CAI refractory component in the inner Solar System
Samuel Ebert, Jan Render, Gregory A. Brennecka, Christoph Burkhardt, Addi Bischoff, Simone Gerber, Thorsten Kleine Earth and Planetary Science Letters Volume 498, 15 September 2018, Pages 257-265 In Press, Available online 20 July 2018 LINK…
Brecciation among 2280 ordinary chondrites – constraints on the evolution of their parent bodies
Addi Bischoff, Maximilian Schleiting, Rainer Wieler, Markus Patzek Geochimica et Cosmochimica Acta In Press, Available online 20 July 2018 LINK “After accretion of meteorite parent bodies, larger and smaller collisions have led to significant modifications…
A Distinct Nucleosynthetic Heritage for Early Solar System Solids Recorded by Ni Isotope Signatures
Jan Render, Gregory A. Brennecka, Shui-Jiong Wang, Laura E. Wasylenki, and Thorsten Kleine The Astrophysical Journal, Volume 862, Number 1 Published: 19 July 2018 LINK “As the earliest dated solids, calcium–aluminum-rich inclusions (CAIs) provide a…
Mineralogy of volatile‐rich clasts in brecciated meteorites
M. Patzek, A. Bischoff, R. Visser, T. John Meteoritics & Planetary Science First published: 18 July 2018 LINK “Meteoritic breccias are valuable samples as they can contain rare materials from the early solar system as…
Detection of meteoroid impacts by the Geostationary Lightning Mapper on the GOES‐16 satelliteOPEN ACCESS
Peter Jenniskens, Jim Albers, Clemens E. Tillier, Samantha F. Edgington, Randolph S. Longenbaugh, Steven J. Goodman, Scott D. Rudlosky, Alan R. Hildebrand, Lincoln Hanton, Fabio Ciceri, Richard Nowell, Esko Lyytinen, Donald Hladiuk, Dwayne Free, Nicholas…
1.34 billion-year-old magmatism on Mars evaluated from the co-genetic nakhlite and chassignite meteorites
Arya Udry, James M.D. Day Geochimica et Cosmochimica Acta Available online 12 July 2018 LINK “Nakhlite and chassignite martian meteorites have similar crystallization (1340 ± 40 Ma) and ejection (∼11 Ma) ages, and 87Rb-87Sr and…
Modeling the measurement accuracy of pre-atmosphere velocities of meteoroidsOPEN ACCESS
Denis Vida, Peter G. Brown, Margaret Campbell-Brown MNRAS Preprint 10 July 2018 PDF (OPEN ACCESS) “Many existing optical meteor trajectory estimation methods use the approximation that the velocity of the meteor at the beginning of…
24 MOTOPI PAN meteorites (214.5375 g, Howardite, HED polymict breccia) of Botswana bolide of 2018 LA (2 June 2018,16:44:01.59-11.77 UT) found near Motopi Pan watering hole, Central Kalahari Game Reserve, Ghanzi, Botswana
Last update: 2 May 2021 Motopi Pan meteorite #1 (17.92 grams) in situ. Photo: Peter Jenniskens/Botswana International University of Science and Technology (BIUST) In the morning of 23 June, after five days of searching and…
Meteorite “Hocheppan” – a Forensic Study
Karl Wimmer published: 5 July 2018 LINK According to Meteoritic Bulletin entry “Hocheppan” an H5 chondrite of 1.236 kg with mostly intact fusion crust was found in October 2016 on a hillside covered with scree…
The soluble organic compounds of the Mukundpura meteorite: A new CM chondrite fall
Sandra Pizzarello, Christopher T. Yarnes Planetary and Space Science Available online 2 July 2018 LINK “Highlights • The first analyses of water-soluble organic content of the MK meteorite are presented and MK composition appears to…
First evidence for silica condensation within the solar protoplanetary disk
Mutsumi Komatsu, Timothy J. Fagan, Alexander N. Krot, Kazuhide Nagashima, Michail I. Petaev, Makoto Kimura, and Akira Yamaguchi PNAS July 2, 2018. 201722265; published ahead of print July 2, 2018. https://doi.org/10.1073/pnas.1722265115 LINK “The oldest solar…
The common origin of family and non-family asteroids
Stanley F. Dermott, Apostolos A. Christou, Dan Li, Thomas. J. J. Kehoe & J. Malcolm Robinson Nature Astronomy (2018) LINK “All asteroids are currently classified as either family, originating from the disruption of known bodies1,…
Meteorite reconnaissance in Saudi Arabia
Beda A. Hofmann, Edwin Gnos, A. J. Timothy Jull, Sönke Szidat, Ayman Majoub, Khalid Al Wagdani, Siddiq N. Habibullah, Mohammed Halawani, Mohammed Hakeem, Mahmoud Al Shanti, Abdulaziz Al Solami Meteoritics & Planetary Science First published:…
Mineralogy and microstructure of the Morasko meteorite crust
Agata Duczma-Czernikiewicz, Danuta Michalska Planetary and Space Science Available online 30 June 2018 LINK “Highlights • Diversity of contact area between the Morasko meteorite fragment (IAB) and its outer zone – bearing traces of the…