Results 31 to 40 of about 96 (85)

Physical and Chemical Properties of Meteoroids

, 2019
International audienceThe chapter provides a comprehensive and up to date review of physical properties (structure, strength, porosity etc.) and chemical composition of small solar system bodies with sizes ranging from several micrometers to several ...
Macke, Robert J., Borovicka, Jiří, Rietmeijer, Frans J. M., Levasseur-Regourd, Anny Chantal, Campbell-Brown, Margaret D., Kohout, Tomáš   +5 more
core   +1 more source

The stellar origins of 96Zr excesses in presolar graphites from the Murchison meteorite

Astronomy & Astrophysics
Context. Zirconium-96 is a stable isotope that can be synthesized under different neutron-rich nucleosynthetic conditions. Astrophysical models predict its production to occur in various stellar environments: from low-to-intermediate-mass asymptotic ...
Pal I., Jadhav M., Shulaker D. Z., Raiwa M., Savina M. R., Bouillion H., Pignatari M., Roberti L., Lugaro M., Szányi B., Karakas A., Denissenkov P., Herwig F., Dory C. J., Gyngard F., Kita N., Amari S.   +16 more
doaj   +1 more source

Discovery of Repeating Shallow Moonquakes in the Apollo Lunar Seismic Data

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Shallow moonquakes have been considered unique due to their large magnitudes and affinities with intraplate earthquakes. However, the small number of detections (<80 events) has prevented detailed characterization. In this study, I identified a pair of repeating shallow moonquakes by analyzing a recently updated moonquake data set.
Keisuke Onodera
wiley   +1 more source

Meteor phenomena and bodies

, 1998
Meteoroids can be observed at collision with the Earth's atmosphere as meteors. Different methods of observing meteors are presented: besides the traditional counts of individual events, exact methods yield also data on the geometry of the atmospheric ...
Ceplecha, Z., Porubcan, V., Hawkes, R., Simek, M., Elford, W., Borovicka, J., Revelle, D.   +6 more
core   +1 more source

Thermodynamic Constraints on H2 Production and Habitability From Mg‐Rich Serpentinites as Mars Analogs

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Serpentinization produces hydrogen and methane through abiotic water‐rock interactions, potentially supporting chemotrophic life in planetary subsurface environments. Serpentine deposits in the Martian Noachian landscapes of Nili Fossae and the Southern Highlands have been considered as potential paleo‐habitable zones. However, the geochemical
Devan M. Nisson, Mohit Melwani Daswani, Emmy B. Hughes, Scott M. Perl, Varsha M. Nair, H. M. T. G. A. Pitawala, Sanjeewa P. K. Malaviarachchi, P. L. Dharmapriya, Meththika Vithanage, Amit Basu Sarbadhikai, Francis Rivera‐Hernández, Suniti Karunatillake   +11 more
wiley   +1 more source

Catalogue of representative meteor spectra

, 2015
Aims. We present a library of low-resolution meteor spectra that includes sporadic meteors, members of minor meteor showers, and major meteor showers.
J. Borovička, R. Štork, V. Vojáček, P. Spurný, P. Koten   +4 more
core   +1 more source

Lateral Variations in Lunar Crustal Thickness Inferred From Apollo Seismic and GRAIL Gravity Data

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract The internal structure of the Moon is key to understanding its formation, evolution, and bulk composition. In particular, determining the structure of the crust–mantle interface (Moho), including its lateral variations, is of significant importance, but current knowledge is still insufficient to fully constrain it.
Xiang Zhang, Taichi Kawamura, Mélanie Drilleau, Philippe Lognonné, Henri Samuel, Zongbo Xu, Keisuke Onodera, Thomas Bodin   +7 more
wiley   +1 more source

Archives of impact: The politics of craters on Earth

Geographical Research, Volume 64, Issue 2, May 2026.
This paper examines Earth’s 195 confirmed impact craters as archives, exploring their cataloguing and presentation as heritage sites. It argues Western scientific framings using military language and emphasising catastrophe overlook settler colonialism’s violent histories and marginalise indigenous earth‐sky cosmologies.
Gareth Hoskins
wiley   +1 more source

Analysis of the meteorite-producing fireballs registered by the MOROI component of the FRIPON network

, 2022
International audience1. IntroductionThe Fireball Recovery and Inter Planetary Observation Network (FRIPON) network [1] uses all-sky cameras in order to detect fireballs. The FRIPON network comprises over 150 cameras installed all over Europe [1].
Zanda, Brigitte, Boaca, Tudor, Malgoyre, Adrien, Birlan, Mirel, Vernazza, Pierre, Boaca, Ioana Lucia, Nedelcu, Alin, Colas, François   +7 more
core   +1 more source

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 801-818, May 2026.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard, Katharina Lodders, Paul K. Carpenter, Piers Koefoed, Karen Ziegler, Kunihiko Nishiizumi, Marc W. Caffee, Laurence A. J. Garvie, Ryan C. Ogliore, Anthony J. Irving, Bradley L. Jolliff, Kun Wang   +11 more
wiley   +1 more source