Planetary science journal articles by members of our group

The authors propose a mechanism that might retain water absorbed at night inside cracks in Martian salts during the day. This is a model of hypothetical microscopic habitats, not evidence of persistent liquid water or life on Mars. Source

The researchers look for traces of past collisions in the magnetic fabric of carbon-rich meteorites. They investigate whether several relatively weak impacts could leave recognizable changes in the arrangement of minerals. Source

Proton irradiation of a carbonaceous meteorite is used to reproduce mineral changes caused by space exposure. Measurements at the same locations before and after treatment show which signals change or disappear, helping guide future spacecraft instruments. Source

The researchers irradiate a meteorite with protons to reproduce solar-wind effects in the laboratory. Changes in its reflectance and crystal structure help explain why the original minerals can be difficult to identify on asteroid surfaces. Source

The study tests how well meteorite minerals remain identifiable after simulated solar-wind exposure and at lower instrument resolution. It introduces a way to quantify which infrared signals disappear first and which remain reliable. Source

The study models the thickness and layering of impact ejecta at a candidate Artemis landing site. The results could guide drilling and sampling and help explain the origins of material encountered there. Source

The paper proposes the LUGO lunar orbiter. Studying unusual surface patches and lava tubes would help explain the Moon's volcanic history and prepare for future human exploration. Source

The study models ejecta trajectories around the Didymos binary asteroid after the DART impact. It investigates which launch locations, speeds and directions could place particles on repeating orbits under the combined effects of gravity and sunlight pressure. Source

The researchers use nearby stars' chemical compositions to estimate the minerals that might form rocky planets around them. The element ratios suggest that Solar System compositions are not typical in every respect; these are predictions rather than direct measurements of exoplanet rocks. Source

The researchers search high-resolution images for small ice patches left behind as the seasonal southern polar cap retreats on Mars. Often preserved in shaded places, their locations and persistence reveal how local conditions help retain ice. Source

This work builds a new geographic catalogue of unusual irregular patches on the Moon. Mapping individual patches and their clusters more precisely helps compare competing explanations for how they formed. Source

Meteorite experiments are used to investigate how solar wind changes the outermost mineral layers on asteroids. The paper also considers whether altered grain contacts could affect the deformation of loosely assembled asteroids, a possibility requiring further research. Source

Laboratory tests indicate that solar wind can change the composition and crystal structure of minerals' outermost layers. The paper considers whether altered grain contacts could influence the movement and shape of rubble-pile asteroids, identifying questions for further testing. Source

The researchers compare lunar crater shapes with surface reflectance to assess how their material has changed over time. Crater appearance relates more clearly to optical maturity than sample grain size does, and the latter relationship remains uncertain. Source

This study evaluates targets for a radar-carrying drone on Mars. An airborne instrument could search for buried ice, sediment layers and lava cavities in areas that a rover would struggle to reach. Source

The authors combine two earlier approaches to improve estimates of pore space inside planetary bodies. They apply the new model to Earth, Mars, the Moon and Enceladus, exploring how pore space varies with depth and temperature. Source

The study compares simulated solar-wind effects on three different meteorites. Microscopy and spectroscopic measurements show that minerals respond differently, so asteroid surface observations need to be interpreted with the material type in mind. Source

The study compares modeled erosion in a terrestrial desert catchment and Tinto-B valley on Mars. It tests how a method describing rain-driven flow and sediment movement can be adapted to the different conditions on Mars. Source

The researchers irradiated a meteorite with protons to reproduce the effects of solar wind on minerals. Infrared measurements reveal changes in crystal structure and mineral signatures, helping interpret observations of asteroid surfaces. Source

The paper compares Raman and infrared measurements at the same meteorite locations before and after proton irradiation. Their different but complementary signals help identify crystal damage and changes in mineral composition. Source

This paper describes Comet Interceptor, a mission designed to visit a relatively unaltered comet or an interstellar object. Several spacecraft would observe its nucleus, gas and dust from different positions to investigate primitive material from the early Solar System. Source

The NWA 10580 meteorite is irradiated with protons in several steps, and laser-based measurements track its mineral changes. Stronger treatment increasingly disrupts the crystal structure, causing some diagnostic mineral signals to disappear. Source

A computer model of ancient water flow distinguishes erosion from sediment accumulation in Jezero Crater's delta. The results could guide sampling toward buried deposits that may better preserve evidence of past environments or possible life. Source

The study models where ancient water flow at Oxia Planum on Mars may have removed or deposited sediment. Predicted accumulation zones could help target sampling by the Rosalind Franklin rover, since buried deposits may preserve organic material. Source

This study compares visible boulders at lunar south-polar sites with radar and reflectance measurements. Differences can point to buried boulders, while rocks thrown out by impacts help estimate the thickness of the loose surface layer. Source

A rotating fluid experiment models atmospheric circulation on an exoplanet that always faces its star with the same side. Uneven heating representing permanent day and night sides is used to investigate the large-scale flows that can develop. Source

The study examines a region of Europa that may have been shaped by icy material reaching the surface. It uses fractures and surface structures to investigate how stresses in the ice shell could relate to the formation of this possible cryovolcanic field. Source

The researchers map a distinctive network of fractures on Europa using Galileo images. Relationships between the fractures help distinguish more continuous surface changes from processes that recur periodically. Source

Secondary minerals in the Martian meteorite Yamato-000593 reveal several episodes of water-related alteration at different temperatures. The authors assess volcanic heating and possible impacts, exploring environments that might briefly have been habitable without demonstrating that life was present. Source

The paper studies fractures, melting and mineral changes in different parts of the Csátalja meteorite. Contrasting alteration patterns indicate a complex history of impacts and mixing, showing that small regions of one meteorite can preserve different earlier environments. Source

This review examines laboratory irradiation tests that reproduce space-driven changes on meteorite surfaces. It identifies gaps in knowledge about individual minerals and measurement methods, helping prepare better interpretations of future asteroid mission data. Source

Two infrared laboratory methods are used to investigate impact-related changes in minerals of the Chelyabinsk meteorite. Comparing them helps assess how traces of high-pressure collisions can be recognized in meteorite material. Source

The researchers estimate the amount of pore space inside Saturn's moon Enceladus using several models. These spaces may matter for water circulation and water–rock interactions; the estimates come from calculations rather than direct measurements of the interior. Source

The researchers assess Sverdrup–Henson crater as a candidate for an early lunar south-polar base. They consider ice, terrain accessibility, solar power and communications together, and recommend further investigation on site. Source

The study analyses craters, slopes and boulders in eight candidate lunar south-polar landing regions for an ice-drilling mission. Crater shapes and preservation also reveal surface evolution and help assess the scientific value of the sites. Source

The researchers study magnetic properties of ancient terrestrial soils to infer how they formed. These methods could help investigate former Martian soils and climate changes, although the different measurements do not provide equally reliable indicators. Source

The paper models heat-producing reactions between water and rock in icy bodies of the early Solar System. Under some conditions, the calculations suggest that the process can reinforce itself and substantially alter their interiors. Source

The paper explores how observing distant planets could help us understand the origins of life on Earth. It discusses chemical signals that Ariel could look for as evidence of processes that precede life. Source

The study maps channels east of Olympus Mons, the largest volcano on Mars. It classifies channel systems among the lava flows and investigates their formation, providing the resulting map in both digital GIS and static formats. Source

The study evaluates the cold, dry high-altitude environment of Ojos del Salado as an analogue for Mars. Snow buried by wind-blown material can persist underground, making the site useful for understanding Martian ice and wind-shaped terrain. Source

The study identifies curved, garland-like ridges in the lunar de Gerlache crater, probably linked to movement on slopes. Such movements may bury ice in some places and expose it in others, making them relevant to polar ice exploration. Source

The researchers test how crater counts can estimate the ages of permanently shadowed lunar surfaces. Detailed topographic data allow many craters to be recognized even where illuminated photographs are unavailable. Source

Detailed images of a borehole wall preserve evidence of rock layers and grains that can disappear when samples are crushed. Tests at terrestrial sites show how this method could improve the interpretation of future drilling on Mars and the Moon. Source

This paper maps where and when conditions might allow tiny amounts of salty liquid to form on Mars. Atmospheric models identify promising evening periods in parts of the northern hemisphere, but humidity and temperature strongly restrict this possibility. Source

The researchers compare 200 small and medium-sized landforms in the northern polar region of Mars. They classify them by shape and discuss whether impacts, surface activity or internal processes could explain their origins. Source

This review connects the environmental history of Mars, the search for life and future human exploration. It stresses that possible biosignatures may be ambiguous and that introducing terrestrial microorganisms would complicate later investigations. Source

This position paper argues for extending planetary missions that are still operating successfully. Besides their additional scientific return, it highlights benefits for research careers, stable funding and broader participation. Source

This proposal summarizes opportunities to study ice deposits in Mercury's shadowed polar regions. Ice and associated volatile materials could reveal how water reached the inner Solar System and how it has been retained there. Source

The Deep Trek proposal outlines several mission concepts for exploring below the Martian surface. Water-sounding measurements and deeper drilling would assess conditions needed for life and search for possible biological evidence. Source

The paper measures magnesium-to-iron ratios in olivine from the Kaba meteorite. Comparing these measurements with observations of circumstellar material helps explore how the composition of early dust and minerals relates to planet formation. Source

The study compares tiny surface marks on terrestrial basalt grains transported by wind and water. Similar marks in Martian basaltic sediments could help identify the environments in which grains moved and were deposited. Source

The GANGOTRI mission concept would investigate glaciers at mid-latitudes on Mars. Drilled ice samples and composition measurements would provide information about past climate and interactions between ice and surface debris. Source

The researchers reconstruct environmental changes from the layers and landforms of a Martian crater. Evidence of early flowing water and a possible lake was followed by dust deposition and erosion, which may have obscured some of the older traces. Source

The paper proposes an open repository to prevent research-produced planetary maps from being lost or remaining difficult to access. Its aim is to preserve derived data systematically and make them reusable by other researchers. Source

The MACIE mission concept would enter the Martian subsurface through a lava-tube cave. In this more sheltered and stable environment, it would investigate possible water ice and habitability without requiring deep drilling. Source

This position paper reviews the origin and history of water and other volatiles on the Moon. It identifies important open questions and future measurements, since lunar evidence can also help explain the evolution of materials across the Solar System. Source

The researchers examine short-lived water flows in the high, dry Andes. Daytime melting of buried snow and previously frozen water helps explain how flow-related landforms can develop in extremely dry environments, with possible relevance to Mars. Source

Relationships between Martian valleys and tectonic faults are used to refine the age of former flowing water. Crater counts on the more extensive faults suggest that the studied valley networks formed around 3.7 billion years ago. Source

This overview explains why the cold, dry and strongly UV-exposed Ojos del Salado region is useful for Mars analogue research. Ground ice, occasional melting and volcanic heat provide environments for studying life under extreme conditions on Earth. Source

Temperature and humidity measurements in the high, dry Andes identify when salts could absorb enough moisture to form brines. Rapid nighttime fluctuations show why frequent measurements are important when investigating similar processes on Mars. Source

Ground-temperature measurements at Ojos del Salado are used to model melting and freezing in ice-bearing soil. The study shows how the different thermal properties of water and ice affect daily changes, providing an Earth analogue for Martian ground conditions. Source

Atmospheric modelling is used to find when salts could absorb enough water vapour to form liquid at the InSight landing site. The calculations suggest only short favourable evening periods, with temperature acting as a crucial constraint. Source

Laboratory measurements of meteorites are used to assess infrared instruments for identifying minerals in the Didymos asteroid system. The study explains why adequate resolution matters for distinguishing olivine, pyroxene and feldspar. Source

The study uses infrared measurements of six meteorites to test how much spectral detail is needed to identify minerals reliably. By deliberately reducing that detail, it shows when useful mineral signatures disappear and helps guide instrument design for asteroid missions. Source

The study analyzes the shape, tributaries and impact craters of Tinto-B valley on Mars. Its results suggest that the main valley and smaller branches have different development histories, and that the system may have formed later than the planet's principal wet period. Source

The model shows how microscopic water layers around volcanic ash grains could support sulphate formation under cold Martian conditions. This offers a chemical pathway that does not require warm, abundant liquid water.

This short contribution compares research methods and interpretations concerning two Martian meteorites, ALH-84001 and ALH-77005. It concerns the assessment of studies of possible life-related traces; the comparison itself does not establish Martian life.

Melt veins and minerals in the Zagami Martian meteorite are examined to reconstruct its impact history. Their textures suggest that some silica-rich melt formed during impact, alongside evidence of later fluid activity.

The study looks for microscopic structures and minerals in the Martian meteorite ALH-77005 that resemble those associated with microorganisms on Earth. The authors propose a possible biological origin, but these similarities are not proof of Martian life.

The study examines channels and valleys in Navua Valles near the rim of Hellas Basin. Their development is used to investigate past water-related activity and what it can reveal about the earlier climate of Mars.

The study examines how official planetary place names are adapted into Chinese and Russian writing systems. It compares local standardization methods and identifies extra information needed beyond the international gazetteer.

Small craters were compared on lunar basalt plains and highlands. Differences in abundance and variable age estimates highlight the influence of surface materials and statistical fluctuations on very small crater counts.

Images taken inside a borehole preserve the original arrangement of layers and grains, which can be lost when samples are removed. Field tests in Morocco and the Atacama Desert show how this approach could help reconstruct sedimentation and ancient water flow on Mars.

The researchers mapped water- and ice-related landforms in Acidalia Planitia. Four distinct groups reveal differences in ground ice and suggest that the northern Martian plains have experienced different climatic histories.

Models and spacecraft data were used to study seasonal near-surface humidity on Mars. Three regions consistently show higher relative humidity, linked to rapid cooling of fine dust and possible night-time condensation.

The researchers study microbial-looking textures and associated minerals in four meteorites. The work emphasizes evidence of terrestrial contamination and examines the difficult problem of separating changes on Earth from those on the original parent bodies.

Landforms in Arcadia Planitia were compared with radar measurements and hydrogen data. The distribution of pits, polygons and surface mantles supports widespread ground ice and its partial loss over time.

Mapping, radar observations and crater counts were used to study ice-related landforms in Utopia Planitia. Three assemblages of different ages and structures point to several episodes of sediment and ice accumulation.

The paper explores how sunlight and charged particles could make solid cometary material emit light. Laboratory meteorite measurements help the authors interpret some previously unidentified cometary emissions.

Several analytical techniques were used to examine the carbon- and microdiamond-rich Hypatia stone from Egypt. Its unusual minerals and strong compositional heterogeneity contribute new evidence to the debate over its origin without settling that question.

The article discusses the evolution of chondritic meteorites on their parent body. It focuses on how rock samples can preserve a record of changes inside that body. Topic description based on bibliographic metadata.

CASTAway is a proposed asteroid mission concept, not a completed mission. It would combine remote spectral surveys of more than ten thousand asteroids with 10–20 close flybys to investigate the main belt’s composition and the evolution of the Solar System.

The study reviews modern analytical investigations of the Kaba meteorite. Its subject is the detailed characterization of the rock's minerals and material properties. Topic description based on bibliographic metadata.

The study examines olivine in the Kaba meteorite from an astromineralogical perspective. It considers links between this meteoritic mineral and mineral material in space. Topic description based on bibliographic metadata.

Minerals and fractures in the Kaba meteorite preserve several stages of fluid-related alteration. The authors distinguish earlier, higher-temperature formation of calcium- and aluminium-bearing minerals from later iron-rich alteration, while also considering possible terrestrial weathering.

Thirty-four possible ancient lake basins were mapped northeast of Mars’s Hellas basin. Different water sources may have supplied them, and their deposits could preserve important records of past environments.

This paper presents a detailed geological map of the Navua Valles region on Mars. High-resolution spacecraft images are used to distinguish surface units and clarify how the valleys and surrounding deposits developed over time.

The size, shape and surface texture of terrestrial sand grains were compared to distinguish wind transport from water transport. The approach could aid interpretation of rover images, but geological context remains essential.

Two thin sections of the Csátalja meteorite show different levels of impact alteration. Combined Raman and infrared measurements help identify damaged minerals and reconstruct parts of its multi-stage shock history.

Fieldwork at Mars analogue sites in Morocco examined how satellite images and ground observations can guide sampling. Shallow excavations can reveal layers and evidence of past water that surface inspection alone would miss.

This review explains the stellar origins of radioactive nuclei in the early Solar System and what they reveal about the Sun's birth. It also discusses how radioactive heating shaped small planetary building blocks and could influence planetary habitability.

The article asks whether microbial activity could have mediated alteration inside the Kaba meteorite. This question should not be confused with proof of extraterrestrial life in the meteorite. Topic description based on bibliographic metadata.

Laboratory experiments studied the formation of carbon-rich dust on extremely cold surfaces. The results show that such material can form locally in interstellar space, offering a possible way to replenish cosmic dust.

Country Movers places familiar countries onto maps of other worlds to make their sizes and distances easier to imagine. The paper explains how these comparisons and travel-time estimates can support planetary science teaching.

The calculations examine heating caused by reactions between water and rock minerals inside planetesimals. In the model, thin interfacial water layers allow alteration at low temperatures, potentially extending this process to a wider range of planetary building blocks.

Three feldspar grains returned from Itokawa by Hayabusa were examined with electron microscopy and light-emission measurements. They show no evidence of strong shock alteration, illustrating how tiny mineral grains can reveal an asteroid’s history.

Impact damage and local melts were identified in minerals of the Csátalja meteorite. Infrared spectroscopy proved useful for recognizing mixed mineral compositions and alteration following shock.

Spacecraft images and topographic data were used to map disconnected valleys and channels in the Navua Valles region. Different network types are compared with precipitation-fed runoff and groundwater outflow to distinguish possible sources of past water activity.

The study examines the distribution and degradation of lunar craters smaller than one hundred metres. Comparing fresh and eroded forms across terrain types highlights uncertainties in age estimates based on small craters.

The NWA 5491 meteorite contains two markedly different rock units. Their grains and alteration features suggest different accretion conditions and show that later processes could also vary within the same parent body.

Minerals in the Csátalja meteorite were examined with Raman and infrared measurements, alongside independent composition analyses. Spectral changes reveal impact-related structural damage that varies strongly over short distances; the reference spectra also support studies of other meteorites.

The calculations examine when microscopic brines could form at different Martian landing sites. Favourable periods depend on time of day, season, surface thermal properties and salts, helping guide future observations.

The method divides a large area into grid cells and records whether selected small landforms are present or absent in each cell. Individual outlines need not be drawn, making distribution maps faster to produce, comparable and suitable for shared mapping projects.

The study asks whether observations could measure the reflectivity of moons orbiting distant planets. Large icy moons around small red dwarf stars offer better prospects, but the required precision remains challenging even for next-generation instruments.

This primer introduces astrobiology's core questions: life's origins, adaptation and the search for life beyond Earth. It brings together biological, chemical, geological and astronomical perspectives to provide a shared foundation across disciplines.

Two spectroscopic methods are used to examine olivine in the Tagish Lake meteorite. Differences within the crystals are interpreted as traces of rapid cooling, later heating and terrestrial weathering, helping reconstruct its parent body's history.

The authors searched Martian lava plains for young craters capable of ejecting nakhlite meteorites towards Earth. Six larger craters were highlighted as possible sources, but their ages and links to the meteorite samples require further testing.

This review examines habitability through planetary properties rather than stellar irradiation alone. The authors argue that subsurface habitability could be common, but is harder to infer from observations.

High-resolution images of streaks emerging from dark dune spots in Richardson crater were examined, distinguishing gas-jet-related features from later downslope growth. The model considers whether tiny amounts of liquid water could assist grain motion; it is not a direct detection of liquid.

Interpreting ExoMars drill samples requires information about layering, grain shapes and nearby outcrops as well as mineral composition. The study identifies observations that could help distinguish the past effects of water and ice.

Tiny surface details of 26 grains returned from asteroid Itokawa were analysed with electron microscopy and three-dimensional X-ray imaging. Fractures, abrasion and radiation-altered rims indicate that grain movement can both modify and refresh surfaces affected by space weathering.

Quartz from Germany’s Ries crater was examined for thin deformation bands produced by impact. Some light-emission signals weaken with stronger shock, helping explain how the technique detects past impact damage.

The paper examines the textures and minerals of the Mócs meteorite to reconstruct heating and post-impact alteration. Extensive recrystallization indicates that the meteorite experienced substantial thermal processing.

Infrared measurements revealed mild alteration in rounded grains of NWA 2086 that is difficult to recognize with ordinary microscopy. Changes in the iron-to-magnesium ratio extend inward from grain margins and fractures, indicating interaction with the surrounding material.

The study examines remnants of rounded melt droplets and several alteration events in the NWA 6604 meteorite. The authors favour heat-driven melting and recrystallization as the explanation, while also considering impact-related processes.

NWA 1465 contains strongly flattened and aligned components despite relatively weak shock alteration. The authors suggest that burial pressure may have contributed and interpret the sample as representing an alteration environment transitional between CV and CK meteorites.

Curved, ripple-like bands and aligned olivine grains were examined in the fine-grained matrix of NWA 3118. Directed crystal growth and limited mechanical movement may both have contributed, so the appearance alone does not prove fluid flow.

Cyanobacterial communities in desert crusts were exposed to Mars-like conditions. Several samples partly survived, with their original habitat strongly affecting the outcome; this highlights the value of testing natural microbial communities, not only isolated organisms.

A rare hexagonal mineral was identified in a calcium- and aluminium-rich inclusion in the NWA 2086 meteorite. Textures and isotope compositions led the authors to interpret it as a product of fluid-assisted thermal alteration on the parent asteroid.

Three distinct phases of water erosion were identified in a Xanthe Terra valley system. Later ice loss, wind activity and slope movements record a local history of Martian cooling and drying.

The article reviews how loose surface material moves and changes under the very weak gravity of asteroids. Smooth terrain that is easy to approach does not necessarily contain the least altered, most informative samples, so site selection needs to balance operational access and scientific value.

The study examines water ice exposed as Mars's northern seasonal carbon dioxide cap retreats. Temperatures permit very thin liquid water films in some locations, but targeted observations are needed to confirm them.

The calculations investigate how quickly hydrogen peroxide could break down in a hypothetical thin Martian water film. Acidic, iron-bearing conditions could substantially accelerate the reaction, but its applicability to present-day Mars remains uncertain and needs laboratory testing.

The NWA 2086 meteorite records early fragmentation followed by chemical alteration probably involving fluids. It may sample a deeper part of its parent asteroid and provides a useful comparison with other meteorites of the same group.

The study analyses landforms in the northern Martian plains using topographic data. It examines spatial relationships among features through morphological comparison. Topic description based on bibliographic metadata.

Mars fieldwork was simulated at Rio Tinto in Spain while a remote control centre adjusted tasks using incoming data. Alongside rock-sample measurements, the article reports lessons about instruments, communication and field operations for future analogue missions.

The study examines Martian debris slopes resembling terrestrial cold-climate landforms. No evidence of glacier formation was identified in the detailed study areas; the slopes are interpreted as complex features developed under earlier climatic conditions different from today’s.

Six Mars-relevant minerals were experimentally shocked and their structures and spectra measured. Near- and mid-infrared signals responded differently, offering an explanation for some disagreements between Martian mineral maps.

The study presents an online map game about landforms on the Moon and Mars. Students can learn place names and feature types through playful tasks, combining terrestrial geography games with multilingual planetary maps.

The study examines light emitted by olivine grains in the Kaba meteorite under an electron beam. Differences between grain cores and rims suggest that relatively low-temperature water-related alteration redistributed elements on the meteorite's parent body.

The article explains why persistent liquid water is difficult to find on cold Mars with its thin atmosphere. It distinguishes water vapour, ice, brines and microscopic water layers, and shows how meteorites can provide clues to earlier water-related environments.

Different sections of an unnamed Martian valley network record successive periods of erosion. Contrasting narrow and broad channel shapes suggest changes in flow processes and regional climate.

Channel and sediment-fan volumes in Gale crater were used to estimate an ancient flow's duration. The calculations allow a short event lasting hours to days, so this landform alone does not demonstrate a long-lived warm and wet Martian climate.

The study investigates traces of Martian water through remote sensing. Surface observations are considered as evidence for interpreting past or present water-related environments. Topic description based on bibliographic metadata.

This review explains how cold conditions, a thin atmosphere and saline water make Martian sediments different from terrestrial deposits. Thick sulphate sequences and limited tectonic reworking preserve the planet's distinctive history.

Europa's disrupted chaos terrains may be connected to deeper aqueous environments. The study evaluates them as exploration targets and considers surface signatures that could reveal processes beneath the ice.

Light emission from meteoritic and synthetic diamonds was compared at room temperature and after strong cooling. Signals from crystal defects and their temperature dependence show the method’s value for studying cosmic nanodiamonds.

Laboratory forsterite crystals grown from a supercooled melt were examined through the light they emit under an electron beam. Blue-to-green emission associated with rapid growth points to crystal defects and helps interpret how meteoritic chondrules formed.

The study examines how impacts alter feldspar crystals in a lunar meteorite. Microscopy and infrared measurements trace the transition from crystalline mineral to glass-like material and estimate the pressures involved.

The paper studies tiny diamonds in two meteorites using microscopy and Raman spectroscopy, which measures a material's response to laser light. Their locations and associated forms of carbon lead the authors to propose formation through magmatic processes.

The article discusses relationships between planets and their moons. It reviews planetary systems through connections among their constituent bodies. Topic description based on bibliographic metadata.

Feldspar’s light emission changes when it experiences high impact pressure. Laboratory calibration shows how these changes can help estimate the shock pressures preserved in meteorites and crater rocks.

Spacecraft and rover images of craters in Meridiani Planum were compared to identify natural exposures of subsurface layers. Image indicators such as walls, blocks and layer boundaries can guide drilling and local rock investigations, although size thresholds may differ in other geological settings.

The dimensions of 327 Martian valleys and more than 300 cross-sections were compared. Five drainage-network types were distinguished, potentially reflecting different water sources and different periods in the planet’s evolution.

The study evaluates how readily scientifically interesting subsurface layers can be sampled at different Martian landing sites. Exposed strata occupy only a small fraction of the surveyed terrain in Eberswalde and Holden craters, so sampling strategies and rover routes need to match local conditions.

The article reviews Mars research in Eastern Europe. It brings the region's planetary research and Mars-related activities into a shared overview. Topic description based on bibliographic metadata.

This review compares the amount and persistence of liquid water in different Martian environments. Lakes, valley networks, hydrothermal systems and microscopic water films differ greatly in duration, which matters when assessing possible habitats.

Experiences from university courses in Hungary and the UK show how planetary science can be incorporated into geography and astronomy teaching. Student feedback suggests that the subject helps learners connect knowledge from different disciplines.

Spacecraft spectra were used to examine water-ice patches on dunes in Richardson crater, followed by estimates of their springtime temperatures. The model suggests that extremely thin liquid layers might occur at ice–grain interfaces, without directly demonstrating their presence.

Laboratory measurements show that a few millimetres of Mars-like granular material strongly screen ultraviolet radiation while still transmitting some visible light. The authors use this to propose a seasonally shifting subsurface search zone, not a detection of Martian life or a demonstrated habitable environment.

The researchers trace impact damage and later heating in olivine grains of the Martian meteorite ALH 77005. Regions altered to different degrees show how recrystallization can modify or erase earlier damage.

Raman spectra of tiny diamonds in the Allende meteorite are used to investigate structural defects. The measurements alone cannot distinguish formation by shock waves from growth out of a gas.

Terrestrial Mars-mission simulations and calculations were used to estimate travel distances and working time for geological investigations. Small features may fit into one excursion, whereas larger valleys, lava terrains and landslides can require several outings or vehicle support.

The paper examines darkening and flow-like changes on frost-covered Martian polar dunes. It evaluates whether short-lived salty liquid could explain some of them, without directly establishing that such liquid is present.

Images, spectra and climate modelling were used to study dark dune spots in Richardson crater. A thin layer of water ice can persist in the grey ring around the spots after carbon dioxide ice disappears.

The paper studies fine structures of ringwoodite, a mineral formed under high impact pressures, in the NWA 5011 meteorite. These textures help distinguish formation mechanisms and explore where the material originated within its parent body.

The study reviews options for investigating minerals and rocks on the Martian surface. It discusses observation and identification methods in their planetary context. Topic description based on bibliographic metadata.

This study follows dark spots appearing on the seasonal frost of northern polar dunes on Mars. Their sizes and internal structures are used to explore whether small amounts of salty liquid might contribute to the observed changes.

Surface and buried structures of terrestrial impact craters can modify the arrangement of rivers and valleys. The study examines how these drainage patterns can help identify craters and understand their subsequent landscape evolution.

The authors model the flow of thin, viscous brine films on Martian dune slopes. Their calculations offer a possible explanation for some springtime flow-like features, rather than direct evidence that liquid water is present.

Microscopy and Raman measurements were used to look for impact traces in quartz from Japan’s Oikeyama area. Thin deformation bands and partly glassy structures support an impact origin.

The paper follows dark downhill streaks on seasonally defrosting dunes near the Martian south pole. It compares explanations involving dry grain movement and fluids, while the shapes alone do not establish the presence of liquid water.

The article discusses spacecraft exploration of the Solar System. It considers how missions provide direct observations of planets and other bodies. Topic description based on bibliographic metadata.

The paper examines dark, flow-like streaks that appear on southern polar dunes on Mars in spring. It proposes that very thin water films at grain–ice interfaces could assist movement, but this is a possible explanation rather than direct proof of liquid water.

The study discusses the role of solar heating and cooling in breaking down Martian rocks. It considers this as a physical process shaping the planet's surface. Topic description based on bibliographic metadata.

The study concerns persistent frost patches in the polar regions of Mars. It considers ice occurrence in the context of polar surface environments. Topic description based on bibliographic metadata.

This review describes the morphology and geographical distribution of terrestrial impact craters. Erosion, burial and vegetation make recognition difficult on Earth, so the observed distribution does not simply reflect where impacts occurred.

The model examines heating inside Enceladus caused by Saturn's tides. Heating is uneven and concentrated at particular depths in the chosen two-layer structure, helping investigate the moon's activity.

Building and operating Hunveyor provides practical work linking physics, computing and other sciences. The article describes the model's structure, measurement systems and classroom experiments.

Apollo samples and lunar meteorites are used to trace major events in the Moon's evolution. The article explains how petrology, stratigraphy and crater-based age information complement one another.

The article introduces the igneous rock types of Martian meteorites through comparisons with terrestrial rocks. Mineral composition, grain size and cooling history together help explain processes that shaped rocks below the Martian surface.

The article discusses asteroid evolution by combining surface observations with meteorite samples. Rock textures and minerals record stages of heating, melting and internal separation of materials.

Raman spectra of naturally and experimentally shocked zircon crystals were examined. Reidite formed at high pressure and changes in crystal structure can help identify old, eroded impact structures.

The paper examines how local place names developed around a Mars simulation station in Utah. The example illustrates how names might emerge around a future lunar or Martian base.

The article describes construction of the Hunveyor-4 educational probe in Székesfehérvár and its main systems. The project engages students in science and engineering through a practical, integrated technical task.

The study considers the hypothesis that a comet nucleus can be assembled from smaller constituent bodies. It proposes a mixture of loose, porous units and more compact ones as a possible explanation for the structure of Comet Borrelly.

The first part introduces Martian climate through familiar concepts from terrestrial meteorology. The thin atmosphere, orbital shape and cycles of water, carbon dioxide and dust together explain strong seasonal changes.

The second part discusses possible causes and modelling of Martian climate change. Changes in axial tilt, movement of ice and dust, volcanism and large impacts can jointly reshape conditions, but their interactions remain difficult to estimate.

The study discusses planetary-map visualization and place naming, including evidence from map-reader tests. It considers how multilingual maps can serve both specialists and the general public.

The article discusses seasonal dark spots on Martian polar dunes and their possible physical and biological explanations. The interpretation involving life is presented as a testable but unproven hypothesis that would require direct investigation at the site.

This review compares different planetary bodies in the Solar System. Alongside shared properties, it considers how differences among bodies can be understood. Topic description based on bibliographic metadata.

This review places Martian landscapes within the planet’s geological periods. It introduces crater-based age estimates and interpretations of an active early Mars while emphasizing that important parts of its history remain unresolved.

The study examines Martian landforms using spacecraft images. These observations provide a basis for geographical interpretation and investigation of surface evolution. Topic description based on bibliographic metadata.

Topographic data and spacecraft images were used to examine valley profiles in Xanthe Terra. Their varied shapes point to a complex history and caution against treating them as unmodified equivalents of terrestrial riverbeds.

The article presents projects of the International Cartographic Association’s planetary cartography collaboration. Multilingual maps, glossaries and data collections aim to make planetary information more widely usable.

Spacecraft images, topographic data and Earth analogues were used to study water- and ice-related Martian landforms. Valleys and debris-covered slopes can help reconstruct past environmental and climatic conditions.

The authors highlight two density increases not adequately represented by the earlier upper-atmosphere model: a nighttime maximum and an excess persisting after magnetic storms. Their proposed correction accounts for possible heating associated with global winds and Earth’s ring current.

Lunar breccias were compared with meteorites, terrestrial rocks and artificial ceramics. Similar textures help illustrate fragmentation, mixing and welding processes, including their use in teaching.

Antarctic meteorite thin sections from the NIPR collection were arranged by their degree of thermal alteration. Together they illustrate internal evolution and differentiation of a chondritic parent body, including its use in education.

Three types of impact glass were examined using several spectroscopic and microscopic techniques. Light-emission images revealed flow structures invisible with other methods and helped compare how the glasses formed.

Spectra of experimentally shocked zircon were studied to identify changes in crystal structure. Infrared and Raman signals distinguish the original zircon from reidite, a form produced at high pressure.

The study reviews planetary bodies in the Solar System. It presents them within a common planetary-science framework. Topic description based on bibliographic metadata.

The article extends the perspective of geonomy to the Solar System. It discusses connections between Earth-science thinking and the comparative study of celestial bodies. Topic description based on bibliographic metadata.

Daily variations in satellite density measurements are used to separate two atmospheric heating contributions from the magnetosphere. Alongside auroral energy input, the author identifies a contribution from ring-current particles in the equatorial upper atmosphere during and after magnetic storms.

A large collection of early satellite observations contained fewer optical sightings in periods following geomagnetic storms. The article statistically examines this pattern as a possible sign of increased cloudiness, rather than presenting a general weather-forecasting method.

The study concerns modelling of water-related environments on Mars. The models provide a framework for interpreting possible aqueous conditions. Topic description based on bibliographic metadata.

The study compares basalt samples in NASA's lunar thin-section set. It connects descriptions of rock textures with a mosaic model and interpretation of cooling and crystallization history. Topic description based on bibliographic metadata.

FOELDIX is an experimental dust collector and bacterial detection system developed for Hunveyor. The article discusses electrostatic collection and a nutrient-based detector, not an actual discovery of life on Mars. Topic description based on bibliographic metadata.

A large set of Antarctic meteorite analyses was used to test how chondrites group by total iron content. The results support earlier observations and provide constraints for calculations of parent-body thermal evolution.

The paper analyses recurring dark spots on Martian polar dunes and the sequence of their seasonal changes. It considers a biological interpretation, but the observed landforms alone do not establish that organisms produced them.

Quartzite samples were shocked at different pressures and temperatures, then examined microscopically and spectroscopically. Stronger shocks produced glassy material, and some signals may help estimate the rock’s past shock conditions.

The study uses a model experiment to investigate electrostatic behaviour of lunar dust. It considers how grain charging and motion relate to the environment above the Moon's surface. Topic description based on bibliographic metadata.

Experimentally shocked zircon crystals were examined using microscopy and spectroscopy. Changes in luminescence and Raman spectra reveal crystal transformations caused by impact shock.

The study proposes a more consistent Hungarian terminology for planetary science. Shared usage supports clarity in research, teaching and map terminology. Topic description based on bibliographic metadata.

Building a Hunveyor model connects physics, chemistry, mathematics and computing. The study uses the design of measurement and support systems to demonstrate practical teaching of systems thinking and environmental science.

Groove systems on Gaspra, Ida and Phobos are compared by shape and orientation. The authors interpret the dominant orientations as possible signs of internal layering and propose origin from larger, differentiated parent bodies, rather than establishing a definitive origin.

San Marco V measurements revealed wave-like variations and brief density decreases in the upper atmosphere. The study examines their dependence on altitude, local time and geomagnetic activity.

Voyager and Galileo images were used to build a global catalogue of Io’s mountains and volcanic centres. Most mountains are interpreted as uplifted crustal blocks, and their distribution is compared with models of Io’s interior.

Brief decreases in neutral-gas density in the equatorial upper atmosphere were investigated using San Marco V data. Their distribution and modelling support the interpretation that these depletions may be linked to ionospheric plasma bubbles.

The article discusses a compositional sequence of basaltic achondrites within the thermodynamics of meteorites and their parent bodies. It compares diogenites and komatiites in the context of planetary rock evolution. Topic description based on bibliographic metadata.

Processed Galileo images were used to examine fractures around Europa’s grey bands. The patterns support an interpretation in which the icy crust separated and new material filled the gap; older and younger generations of bands can also be distinguished.

The article discusses ancient rivers on Mars. Traces of flowing water are considered as part of the planet's past landscape evolution. Topic description based on bibliographic metadata.

The study focuses on chondrules, the rounded grains formed from melt droplets in the Kaba meteorite. Their investigation addresses the meteorite's formation and subsequent alteration. Topic description based on bibliographic metadata.

Impact experiments examined the composition of iron- and nickel-bearing grains. Different collision conditions can produce different metallic and silicon-bearing residues.

San Marco V density measurements were used to study waves in the equatorial upper atmosphere. Wave amplitudes generally increased with altitude but sometimes changed abruptly; the authors also examine interactions between ionized and neutral atmospheric components.

The article discusses material evolution from chondrites through primitive to basaltic achondrites. This sequence is considered in relation to thermal and petrological changes in meteorite parent bodies. Topic description based on bibliographic metadata.

The article examines chemical changes caused by repeated impacts. Under reducing conditions, limestone can yield carbon and iron-rich basalt can yield metallic iron grains, with implications for lunar soil.

Projectile and target materials can mix through melting or vaporization during impact. The article explains why iron-, nickel-, silicon- and sulphur-bearing residues can differ chemically from the original meteorite.

The study discusses thermal evolution of chondritic parent bodies through changes in iron-bearing phases. Its focus is iron-oxide reduction, movement of metal and material separation. Topic description based on bibliographic metadata.

The San Marco V satellite measured brief, sudden density decreases in the equatorial upper atmosphere. Their timing led the authors to interpret them as encounters with ionospheric plasma bubbles.

The study offers an explanation for the unusual volcanic structure of Alba Patera on Mars. The author proposes that an older, corona-like structure was subsequently buried beneath thick volcanic deposits from the Tharsis region; this is a proposed interpretation rather than an established history.

Satellite accelerometer data revealed upper-atmosphere density fluctuations not explained by the standard model. Their spatial and local-time patterns help investigate possible sources of atmospheric waves.

This preliminary report introduces the Kaposfüred iron meteorite from Hungary. It presents an early scientific account of the find. Topic description based on bibliographic metadata.

Satellite measurements were used to test how well the CIRA atmospheric model describes upper-atmosphere density changes. A revised description of geomagnetic effects better reproduced the low-latitude observations, particularly around magnetic storms.

The study uses satellite density measurements to revise the geomagnetic term in an upper-atmosphere model. An altitude-dependent correction aims to improve its performance at low latitudes.

The article discusses possible sources of cosmic spherules in the Solar System. It addresses how the origin of small, rounded particles can be interpreted. Topic description based on bibliographic metadata.

CACTUS measurements of atmospheric density at altitudes of 220–700 kilometres were compared with models. Time-of-day-dependent differences are examined in relation to magnetospheric heating and possible atmospheric-wave effects, seeking explanations for coupling between atmospheric regions.

The study reports experimental investigations of a sample of the Antarctic Martian meteorite ALHA-77005. Mineral composition and rock structure provide the basis for interpreting its origin and alteration. Topic description based on bibliographic metadata.

The article discusses thermal transformations within meteorite parent bodies. Meteorite samples provide evidence for investigating material evolution inside small bodies. Topic description based on bibliographic metadata.

The study investigates evolution of chondritic parent bodies through relationships among iron-bearing components. It compares mineral components in the context of material transformation. Topic description based on bibliographic metadata.