Meteoroid
View article: From Flash to Crater: Morphological and Spectral Analysis of the Brightest Lunar Impact on 11 September 2013 using LRO Data
From Flash to Crater: Morphological and Spectral Analysis of the Brightest Lunar Impact on 11 September 2013 using LRO Data Open
We present a comprehensive morphological and spectrophotometric analysis of the lunar impact that occurred on September 11, 2013, based on pre- and post-event observations by the Lunar Reconnaissance Orbiter (LRO). The crater formed exhibi…
View article: JWST observations of cosmic-ray-excited H$_2$ in Barnard 68: spatial variations and constraints on cosmic-ray attenuation
JWST observations of cosmic-ray-excited H$_2$ in Barnard 68: spatial variations and constraints on cosmic-ray attenuation Open
We present James Webb Space Telescope (JWST) NIRSpec observations of the starless dark cloud Barnard 68 that reveal the spatially-resolved signature of cosmic-ray excited molecular hydrogen (CRXH$_2$) emissions for the first time. Followin…
View article: JWST observations of cosmic-ray-excited H$_2$ in Barnard 68: spatial variations and constraints on cosmic-ray attenuation
JWST observations of cosmic-ray-excited H$_2$ in Barnard 68: spatial variations and constraints on cosmic-ray attenuation Open
We present James Webb Space Telescope (JWST) NIRSpec observations of the starless dark cloud Barnard 68 that reveal the spatially-resolved signature of cosmic-ray excited molecular hydrogen (CRXH$_2$) emissions for the first time. Followin…
View article: The Physics of Cometary Anti-tails as Observed in 3I/ATLAS
The Physics of Cometary Anti-tails as Observed in 3I/ATLAS Open
Observations of interstellar comet 3I/ATLAS at 3.8 au show an elongated coma similar to a cometary tail but pointing in the direction of the Sun, possibly the first instance of this type of anti-tail which is not a result of perspective. W…
View article: Pułtusk H5 Chondrite—A Compilation of Chemical, Physical, and Thermophysical Data
Pułtusk H5 Chondrite—A Compilation of Chemical, Physical, and Thermophysical Data Open
The Pułtusk meteorite, classified as an H5 ordinary chondrite, is one of the best documented Polish falls, yet some important data on its physical and thermophysical properties remain limited. This study provides new measurements and deriv…
View article: Formation of Polyoxymethylenes in Extraterrestrial Ice Analogs of Formaldehyde Exposed to Ionizing Radiation
Formation of Polyoxymethylenes in Extraterrestrial Ice Analogs of Formaldehyde Exposed to Ionizing Radiation Open
Polyoxymethylenes (POMs) have long been hypothesized as key organics in comets, as their decomposition products could account for the possible extended cometary formaldehyde (H 2 CO) source. However, POMs (X–(CH 2 O) n –Y; n > 2) are hithe…
View article: Original TEM data for“Million-Year Scale Meteoroid Flux Homogeneity Across the Moon: Evidence from Chang'E-6 Samples and Gardening Simulations”
Original TEM data for“Million-Year Scale Meteoroid Flux Homogeneity Across the Moon: Evidence from Chang'E-6 Samples and Gardening Simulations” Open
Original TEM data for“Million-Year Scale Meteoroid Flux Homogeneity Across the Moon: Evidence from Chang'E-6 Samples and Gardening Simulations”
View article: Simultaneous detection of the size and velocity of the largest ejecta particles with velocities exceeding 1 km^{-1}
Simultaneous detection of the size and velocity of the largest ejecta particles with velocities exceeding 1 km^{-1} Open
Impact ejecta with velocities exceeding the escape velocity of planetary bodies become meteorites and dust particles in interplanetary space. We present a new method that allows simultaneous measurement of the size and velocity of the larg…
View article: Original TEM data for“Million-Year Scale Meteoroid Flux Homogeneity Across the Moon: Evidence from Chang'E-6 Samples and Gardening Simulations”
Original TEM data for“Million-Year Scale Meteoroid Flux Homogeneity Across the Moon: Evidence from Chang'E-6 Samples and Gardening Simulations” Open
Original TEM data for“Million-Year Scale Meteoroid Flux Homogeneity Across the Moon: Evidence from Chang'E-6 Samples and Gardening Simulations”
View article: Simulated data for the study "Effects of Comet Encke's meteoroid stream on the seasonal variation of Mercury's Ca exosphere"
Simulated data for the study "Effects of Comet Encke's meteoroid stream on the seasonal variation of Mercury's Ca exosphere" Open
This .csv file contains simulated data related to the seasonal variation of calcium (Ca) in Mercury's exosphere, derived from Micro-Meteoroid Impact Vaporization (MMIV) processes. The model includes contributions from both the meteoroid ba…
View article: Simultaneous detection of the size and velocity of the largest ejecta particles with velocities exceeding 1 km^{-1}
Simultaneous detection of the size and velocity of the largest ejecta particles with velocities exceeding 1 km^{-1} Open
Impact ejecta with velocities exceeding the escape velocity of planetary bodies become meteorites and dust particles in interplanetary space. We present a new method that allows simultaneous measurement of the size and velocity of the larg…
View article: Data: Nanoparticle Records of Extraterrestrial Origin Support Younger Dryas Boundary Cosmic Impact, Santa Barbara Basin, California
Data: Nanoparticle Records of Extraterrestrial Origin Support Younger Dryas Boundary Cosmic Impact, Santa Barbara Basin, California Open
Dataset. Santa Barbara Basin marine sediments (ODP Site 893A) provide an ultra-high-resolution stratigraphic record across the enigmatic Younger Dryas (YD) climatic episode (12.8–11.7 ka BP). Numerous studies have proposed a cosmic impact …
View article: Data: Nanoparticle Records of Extraterrestrial Origin Support Younger Dryas Boundary Cosmic Impact, Santa Barbara Basin, California
Data: Nanoparticle Records of Extraterrestrial Origin Support Younger Dryas Boundary Cosmic Impact, Santa Barbara Basin, California Open
Dataset. Santa Barbara Basin marine sediments (ODP Site 893A) provide an ultra-high-resolution stratigraphic record across the enigmatic Younger Dryas (YD) climatic episode (12.8–11.7 ka BP). Numerous studies have proposed a cosmic impact …
View article: Micrometeoroid Impact Rate Analysis for an Artemis-Era Lunar Base
Micrometeoroid Impact Rate Analysis for an Artemis-Era Lunar Base Open
NASA's Artemis Mission aims to return astronauts to the Moon and establish a base at the lunar south pole. A key challenge is understanding the threat from micrometeoroid impacts, which are too small to monitor directly. Using NASA's Meteo…
View article: Micrometeoroid Impact Rate Analysis for an Artemis-Era Lunar Base
Micrometeoroid Impact Rate Analysis for an Artemis-Era Lunar Base Open
NASA's Artemis Mission aims to return astronauts to the Moon and establish a base at the lunar south pole. A key challenge is understanding the threat from micrometeoroid impacts, which are too small to monitor directly. Using NASA's Meteo…
View article: Dust, sand and wind drive slope streaks on Mars.
Dust, sand and wind drive slope streaks on Mars. Open
Mars' slope streaks are dark albedo features created by the avalanching of surface dust. Recent work provided geostatistical evidence for the dry nature of streaks and their drivers, but presented no direct, quantitative measure of streak …
View article: Comet taxonomies: composition-based classifications and a search for comets in the Main Belt
Comet taxonomies: composition-based classifications and a search for comets in the Main Belt Open
Comets are icy small bodies assumed to have remained mostly unaltered since their formation, making them key tracers of the early stages of the Solar System. While comets show a great diversity of dynamical, physical and chemical propertie…
View article: The interstellar flux gap: From dust to kilometer-scale objects
The interstellar flux gap: From dust to kilometer-scale objects Open
Context. Three kilometer-sized interstellar objects (ISOs) have been detected transiting the Solar System, and spacecraft have directly measured micrometer-scale interstellar dust (ISD). Yet no intermediate-size interstellar meteoroids hav…
View article: Can Spacecraft‐Borne Contamination Compromise Our Understanding of Lunar Ice Chemistry?
Can Spacecraft‐Borne Contamination Compromise Our Understanding of Lunar Ice Chemistry? Open
Recent detections of water ice in the permanently shadowed regions (PSRs) at the lunar poles have reignited scientific and commercial interest in the exploration of Earth's closest neighbor. The frigid temperatures in PSRs operate as cold …
View article: Observation of a Long‐Lived Optical Meteor Producing Low Mesosphere Irregularity Echo: Trajectory, Fragmentation, and Spectroscopy
Observation of a Long‐Lived Optical Meteor Producing Low Mesosphere Irregularity Echo: Trajectory, Fragmentation, and Spectroscopy Open
Observations of meteoroids and their associated phenomena in the atmosphere provide crucial insights into the composition and structure of their parent bodies, and enhance our understanding of their impact on the near‐Earth space environme…
View article: High-order mean-motion resonances in the main belt
High-order mean-motion resonances in the main belt Open
Aims . In this paper, we present statistical research on a representative sample of asteroids captured in low- to high-order (resonant order q ≤ 100) two-body and three-body ( q ≤ 10) mean motion resonances (MMRs) in the main belt to asses…
View article: Determining the statistical significance of meteorite–asteroid pairs using geocentric parameters
Determining the statistical significance of meteorite–asteroid pairs using geocentric parameters Open
Context . Orbital similarity between precisely observed meteorite falls and near-Earth asteroids (NEAs) has been presented for decades as evidence that some meteorites are coming directly from these asteroids. However, analysis of the stat…
View article: 3D model of the Hraschina Meteorite (NHMW-MIN-A2)
3D model of the Hraschina Meteorite (NHMW-MIN-A2) Open
3D scan of the 39 kilogram Hraschina iron meteorite (Medium octahedrite / IID), which is the founding specimen of the Vienna meteorite collection, the oldest in the world. Its fall was observed in Hraschina, near Zagreb, Croatia, on May 26…
View article: The Potential Danger to Satellites due to Ejecta from a 2032 Lunar Impact by Asteroid 2024 YR<sub>4</sub>
The Potential Danger to Satellites due to Ejecta from a 2032 Lunar Impact by Asteroid 2024 YR<sub>4</sub> Open
On 2032 December 22, the 60 m diameter asteroid 2024 YR 4 has a 4% chance of impacting the Moon. Such an impact would release 6.5 MT TNT equivalent energy and produce a ∼1 km diameter crater. We estimate that up to 10 8 kg of lunar materia…
View article: A Curated Dataset of Regional Meteor Events with Simultaneous Optical and Infrasound Observations (2006–2011)
A Curated Dataset of Regional Meteor Events with Simultaneous Optical and Infrasound Observations (2006–2011) Open
We present a curated, openly accessible dataset of 71 regional meteor events simultaneously recorded by optical and infrasound instrumentation between 2006 and 2011. These events were captured during an observational campaign using the all…
View article: “Stars Falling to Earth”—Mental Models of Comets and Meteors
“Stars Falling to Earth”—Mental Models of Comets and Meteors Open
The present study examines students’ conceptions of comets and meteors using qualitative research methods. A total of 35 semi-structured interviews were conducted with students in grades 7 and 9 in Germany, aiming to gain a richer understa…
View article: Modeling Atmospheric Alteration on Titan: Hydrodynamics and Shock-induced Chemistry of Meteoroid Entry
Modeling Atmospheric Alteration on Titan: Hydrodynamics and Shock-induced Chemistry of Meteoroid Entry Open
Meteoroid entry into planetary atmospheres generates bow shocks, resulting in high-temperature gas conditions that drive chemical reactions. In this paper, we perform three-dimensional hydrodynamic simulations of meteoroid entry using the …
View article: Error dependencies in the space-based CNEOS fireball database
Error dependencies in the space-based CNEOS fireball database Open
Context . The CNEOS database offers near-global coverage of fireball events based on U.S. Government sensor detections. The database contributes to investigations of meteoroid impact fluxes. However, the accuracy of these data is not repor…
View article: The Kresáks’ diagram: Hyperbolic meteoroid orbits and their confidence level
The Kresáks’ diagram: Hyperbolic meteoroid orbits and their confidence level Open
Context . Improving the precision and accuracy of meteor measurements and reliably determining the uncertainties of meteor parameters are two of the main challenges in meteor astronomy research today. These parameters significantly affect …
View article: Meteoroid Stream Identification with HDBSCAN Unsupervised Clustering Algorithm
Meteoroid Stream Identification with HDBSCAN Unsupervised Clustering Algorithm Open
Accurate identification of meteoroid streams is central to understanding their origins and evolution. However, overlapping clusters and background noise hinder classification, an issue amplified for missions such as the European Space Agen…