On asteroids, fractures develop due to stresses driven by diurnal temperature variations at spatial scales ranging from sub-millimetres metres. However, the timescales of such rock fracturing thermal fatigue are poorly constrained observations. Here we analyse images asteroid (101955) Bennu obtained Origins, Spectral Interpretation, Resource Identification and Security-Regolith Explorer (OSIRIS...

This study contributes to a better understanding of geogenic reef distribution in the southern Baltic Sea and highlights implications survey-related factors on automated boulder classification when utilizing data from multiple surveys. The hard grounds reefs is needed as baseline for geological biological studies, but also offshore construction, navigation coastal management. In this we provide...

This paper presents new U–Th/He crystallization and He exposure ages on olivine for a suite of basalt samples from the Snake River Plain, Idaho. The results provide the first demonstration that U–Th/He geochronology can be successfully applied to Late Quaternary basalts using measurements of olivine phenocrysts as opposed to U-rich minerals. The approach employs abrasion to remove the outer rin...

ABSTRACT The discovery of numerous debris discs around white dwarfs (WDs) gave rise to extensive study such and their role in polluting WDs, but the formation evolution these is not yet well understood. Here, we aeolian (wind) erosion solids WD discs. Aeolian a destructive process that plays key shaping properties size distribution planetesimals, boulders, pebbles gaseous protoplanetary Our ana...

Rockfall hazard gains popularity nowadays among researchers in different scientific fields, decision-makers and urban planners. The assessment of rockfall requires detection, mapping estimating the maximum travel distance that rock boulders may reach, commonly known as “rockfall runout”. This latter can change significantly under effects triggering factors such soil conditions, chemical, physic...

The origins of fractures in Martian boulders are unknown. Here, using Mars Exploration Rover 3D data products, we obtain orientation measurements for 1,857 cracks visible in 1,573 rocks along the Spirit traverse and find that Mars rock cracks are oriented in statistically preferred directions similar to those compiled herein for Earth rock cracks found in mid-latitude deserts. We suggest that M...