Results 91 to 100 of about 1,064 (199)

Maximal Gravity at the Surface of an Asteroid

, 2003
The maximum strength of gravity at the surface of an object of a given mass is not attained for a spherical shape, but for a small departure from sphericity.
openaire   +2 more sources

Cultural geography of heat: Artistic experiments with heat’s animacies

Geographical Research, Volume 64, Issue 3, August 2026.
A sustained, cultural geographical engagement with heat is long overdue. I advance this agenda by engaging with the work of contemporary artists. Artists are responding to uneven conditions of global heating by exploring heat’s animacies: how heat interweaves with the practices and textures of life.
Sasha Engelmann
wiley   +1 more source

Along the Benthic to Holoplanktonic Continuum: Seafloor Affinity Increases Distance‐Decay Rates Among Abyssal Communities

Global Ecology and Biogeography, Volume 35, Issue 8, August 2026.
ABSTRACT Aim Marine species ranges are often large, contributing to relatively high community similarity over space, with decreased ranges expected among taxa that have lower dispersal and/or higher substrate requirements. We tested for a weakening of biogeographic structuring among dispersing abyssal taxa along the benthic to holoplanktonic habitat ...
Gabrielle N. Ellis, Oliver Kersten, Eric Vetter, Craig R. Smith, Jeffrey C. Drazen, Erica Goetze   +5 more
wiley   +1 more source

Reactive Molecular Dynamics Simulations of Iron Reduction on Lunar and Asteroidal Surfaces by Micrometeoroids and Solar Wind

The Astrophysical Journal
Regolith grains and rock surfaces altered by space weathering on the Moon and S-type asteroids contain nanometer-sized metallic iron particles, known as nanophase iron (npFe ^0 ).
Daigo Shoji
doaj   +1 more source

Emirates Exploration Imager (EXI) Reveals Crater and Boulder Distribution on Deimos: Insights Into Its Dynamical and Geological Evolution

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Deimos, the smaller and outer Martian moon, is a dark, irregularly shaped body whose origin and evolution are still poorly constrained. Its surface is smoother and less cratered than the other moon, Phobos, a difference still unexplained due to limited data coverage and resolution.
Y. Shimizu, R. H. Hoover, K. Hotta, N. R. Alsaeed, W. F. Bottke, C. S. Edwards, H. Kikuchi, H. Miyamoto, M. M. Osterloo, P. Michel, S. J. Robbins   +10 more
wiley   +1 more source

Life on Mars? The physiological perspective

Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley   +1 more source

Shaking and Tumbling: Short- and Long-timescale Mechanisms for Resurfacing of Near-Earth Asteroid Surfaces from Planetary Tides and Predictions for the 2029 Earth Encounter by (99942) Apophis

The Planetary Science Journal
Spectral characterization of near-Earth asteroids (NEAs) has revealed a continuum of space-weathered states for the surfaces of S-complex NEAs, with Q-class NEAs, an S-complex subclass, most closely matching the unweathered surfaces of ordinary chondrite
R.-L. Ballouz, H. Agrusa, O.S. Barnouin, K.J. Walsh, Y. Zhang, R.P. Binzel, V.J. Bray, D. N. DellaGiustina, E.R. Jawin, J.V. DeMartini, A. Marusiak, P. Michel, N. Murdoch, D.C. Richardson, E.G. Rivera-Valentín, A.S. Rivkin, Y. Tang   +16 more
doaj   +1 more source

Radar Circular Polarization Ratio of Near-Earth Asteroids: Links to Spectral Taxonomy and Surface Processes

The Planetary Science Journal
The radar circular polarization ratio (CPR) is an indicator of near-surface, wavelength-scale complexity. Interestingly, previous surveys also noted an association between near-Earth asteroid (NEA) disk-integrated CPR and spectral taxonomic class ...
Edgard G. Rivera-Valentín, Betzaida Aponte-Hernández, Patrick A. Taylor, Michael C. Nolan, Ellen S. Howell, Dany Waller, Luisa F. Zambrano-Marín, Anne K. Virkki, Ronald-Louis Ballouz, Angela M. Stickle   +9 more
doaj   +1 more source

Asteroid gravitational field calculation via GeodesyNets with quadratic layers

Geo-spatial Information Science
Asteroid gravity inversion is a method used to infer the internal density distribution of small celestial bodies through external gravitational measurements.
Zhitao Fu, Weitong Li, Shanhong Liu
doaj   +1 more source

Categorization of Spatial and Temporal Ejecta Outcomes in Binary Systems Based on Variations of the Didymos System

The Planetary Science Journal
With the increasing number of binary asteroid systems being discovered, ejecta studies must expand from solely investigating single-body systems to modeling more complex multiple-body systems. For example, the Double Asteroid Redirection Test provides an
Jennifer N. Larson, Yanga Fernandez, Gal Sarid   +2 more
doaj   +1 more source