Results 111 to 120 of about 248,477 (327)

Silicate–sulfide interaction within quenched melts of space weathered Ryugu grains

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The first few microns of the surface of airless bodies are subject to severe changes due to the harsh environment of space, known as space weathering. The Hayabusa2 sample return mission from the asteroid Ryugu provides the first opportunity to study these effects on a carbonaceous and hydrated body.
Sylvain Laforet   +9 more
wiley   +1 more source

The Design of a Rubric to Evaluate Laboratory Reports in Astronomy: Academic Literacy in the Disciplines

open access: yesProfile: Issues in Teachers' Professional Development, 2014
A rubric was developed to evaluate laboratory reports written by undergraduate students of astronomy and astrophysics from Universidad Católica de Chile.
María Cristina Arancibia Aguilera
doaj   +1 more source

Selective sampling of asteroids, the Moon, and Mars: Factors affecting the numerical abundances of members of meteorite groups

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Meteorite collection inventories show that many related meteorite groups have very different numerical abundances (e.g., lunar versus Martian meteorites; Eagle Station pallasites versus main‐group pallasites; eucrites versus diogenites; ungrouped Antarctic irons versus ungrouped non‐Antarctic irons; carbonaceous chondrite‐related (CC) iron ...
Alan E. Rubin
wiley   +1 more source

Experimental simulations of space weathering on pentlandite

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Pentlandite (Fe, Ni)9S8 is an important accessory mineral on asteroidal surfaces. It has been identified in returned regolith samples from asteroids Itokawa, Ryugu, and Bennu. Currently, systematic studies to understand the response of this mineral phase under space weathering conditions are lacking.
L. C. Chaves   +8 more
wiley   +1 more source

The Meteoritical Society: Business from 2023 to 2024

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue 3, Page 680-696, March 2025.
Nancy L. Chabot   +2 more
wiley   +1 more source

Low‐temperature dissociation of zircon in highly alkaline conditions: A cautionary note for studies on natural glasses of debated origin

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Dissociated zircon is largely used as a robust indicator of glasses generated by impact cratering and airbursts. The reaction of zircon dissociation, i.e. ‘ZrSiO4 → ZrO2 + SiO2’, requires high temperatures (>1670°C) only reached by extreme geological processes. Using high‐temperature experiments, this study shows that zircon can dissociate and
A. Musolino   +8 more
wiley   +1 more source

The Meteoritical Bulletin, No. 113

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Meteoritical Bulletin 113 contains the 3646 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2024. It includes 17 falls, 2964 ordinary chondrites, 218 HED, 158 carbonaceous chondrites (including 7 ungrouped), 59 lunar meteorites, 38 iron meteorites (9 ungrouped), 30 ureilites, 31 primitive achondrites (3 ...
Jérôme Gattacceca   +11 more
wiley   +1 more source

Microbial preference for chlorate over perchlorate under simulated shallow subsurface Mars-like conditions

open access: yesScientific Reports
The Martian surface and shallow subsurface lacks stable liquid water, yet hygroscopic salts in the regolith may enable the transient formation of liquid brines.
Florian Carlo Fischer   +2 more
doaj   +1 more source

Infrared astronomy [PDF]

open access: yes
The role and contributions of Frank McDonald in extending high energy astrophysics to the sub-eV photon energy range (in putting infrared astronomy into orbit) are ...
Hauser, Michael G.
core   +1 more source

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