Results 21 to 30 of about 4,947 (146)

Archives of impact: The politics of craters on Earth

open access: yesGeographical 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

Comparing the data-reduction pipelines of FRIPON, DFN, WMPL, and AMOS: Case study of the Geminids

open access: yesAstronomy & Astrophysics
Context. The number of meteor observation networks has expanded rapidly due to declining hardware costs, enabling professional and amateur groups to contribute substantial datasets.
Shober P. M.   +17 more
doaj   +1 more source

Lunar ejecta as the missing piece to resolving lunar cratering asymmetry

open access: yesAstronomy & Astrophysics
The leading-trailing asymmetry in lunar crater distribution provides a critical record of inner Solar System dynamics, yet the long-standing discrepancy between the observed higher asymmetry and lower theoretical predictions indicates a gap in our ...
Li Hailiang   +2 more
doaj   +1 more source

Photographic fireball networks [PDF]

open access: yes
Long term radar observations of any meteor shower yield good data for a study of the features of its cross section structure in detail. The hourly rates of meteor echoes represent usually the basic data from which shower characteristics are derived ...
Ceplecha, Z.
core   +4 more sources

Accretion of Meteoric Organic Matter at the Surface of Mars and Potential Production of Methane by Ultraviolet Radiation

open access: yesThe Planetary Science Journal
In this study, a comprehensive model of the meteoric organic cycle on Mars for the current geological period is developed, which characterizes the ablation of exogenous organic matter in the upper atmosphere, the accretion of intact carbon at the surface,
Juan Diego Carrillo-Sánchez   +3 more
doaj   +1 more source

Achondrites in meteor data: Spectra, dynamics, and physical properties of candidate aubrite and eucrite impactors

open access: yesAstronomy & Astrophysics
Meteor spectroscopy presents new opportunities for investigating the diversity of small Solar System bodies and capturing the real distribution of present material types. In this work, we analyzed a sample of 180 higher-resolution meteor spectra from the
Matlovič P.   +12 more
doaj   +1 more source

The effect of early diagenetic processes on the quantification of fossil micrometeorite abundance and flux in the geological record

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 4, Page 551-564, April 2026.
Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia   +2 more
wiley   +1 more source

Solar System material reaching neighboring star systems

open access: yesAstronomy & Astrophysics
Context. In our Solar System, few macroscopic objects have been observed to be moving in hyperbolic orbits and, thus, they must have originated from interstellar space. Some meteoroids are also suspected to have an interstellar origin.
Neslušan L.   +3 more
doaj   +1 more source

Review of asteroid, meteor, and meteorite‐type links

open access: yesMeteoritics & Planetary Science
With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls.
P. Jenniskens, H. Devillepoix
semanticscholar   +1 more source

The Unified Astronomy Thesaurus: Semantic Metadata for Astronomy and Astrophysics

open access: yes, 2018
Several different controlled vocabularies have been developed and used by the astronomical community, each designed to serve a specific need and a specific group.
Accomazzi, Alberto, Frey, Katie
core   +1 more source

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