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Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
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Empirical Data from Oort’s Cloud [PDF]
International Astronomical Union Colloquium, 1985 AbstractEmpirical evidence about the size and the origin of the Oort’s cloud of comets is confronted with theories about its origin. The slow diffusion of the orbits of the “new” comets into the inner solar system implies a redefinition of the concept of “new” comet.
openaire +1 more source
Sedna and the Oort Cloud around a migrating Sun [PDF]
, 2011 Recent numerical simulations have demonstrated that the Sun's dynamical history within the Milky Way may be much more complex than that suggested by its current low peculiar velocity (Sellwood, J.A., Binney, J.J. [2002]. Mon. Not. R. Astron. Soc.
Roškar, R +5 more
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Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.Abstract On 9 December 2025, an atypical synoptic cyclone developed near the borders of Paraguay, Argentina, and southern Brazil, triggering severe weather across south‐southeastern Brazil. Unlike typical South Atlantic extratropical cyclones, which intensify near the coast, this system originated inland and underwent explosive cyclogenesis without a ...
M. S. Reboita +3 more
wiley +1 more source
Astronomy & AstrophysicsMost stars form in dense stellar environments, where frequent close encounters can strongly perturb and reshape the early architecture of planetary systems.
Torres Santiago
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The Source of Arctic Precipitation in HadGEM3‐GC5
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.Abstract Snow and rain are increasing in the Arctic. Climate model projections indicate a 50% increase in precipitation by the end of the century. This increase is driven by increased local evaporation following reduced sea ice coverage alongside enhanced global evaporation and transport into the Arctic.
J. K. Ridley +3 more
wiley +1 more source
From the Oort cloud to observable short-period comets - I. The initial stage of cometary capture
, 2001 We investigate the first stage of the dynamical evolution of Oort cloud comets entering the planetary region for the first time. To this purpose, we integrate numerically the motions of a large number of fictitious comets pertaining to two samples, both ...
Rickman, H,, Froeschle, C, Valsecchi, GB
core +6 more sources
A Potential Signature of HD 7977’s Passage among Observed Long-period Comet Orbits
The Planetary Science JournalIt is generally presumed that the tidal field of the Milky Way’s disk is the main perturbation that has driven observed long-period comets (LPCs) from the Oort cloud into the inner solar system.
Nathan A. Kaib, Sean N. Raymond
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Capture of interstellar objects during stellar encounters
Astronomy & AstrophysicsAs they orbit within the Galaxy, stars swim through a vast population of interstellar objects (ISOs). In this paper, we use N-body simulations to show that a fraction of ISOs within ∼1 pc of the Sun (its tidal radius) may be captured during the flyby of ...
Raymond Sean N. +2 more
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New model for calculation the radius of comet’s nucleus [PDF]
E3S Web of ConferencesIn this work, a new equation derived to obtain some physical properties like radius and luminosity of comets using distances between the comet, the Earth and the Sun that represent the geocentric distance and heliocentric distance at applying it to a ...
Mohammed Abd-AL Hamza Mariam +1 more
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