Results 91 to 100 of about 1,838 (234)
Planetary Encounters as the Cause of Fresh Asteroid Surfaces
, 2009 International audienceSpace weathering to redden asteroid surfaces by the solar wind appears to be a very rapid
Merouane, Sihane +9 more
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Orbital Capture of Ejecta into Periodic Orbits around Binary Asteroid (65803) Didymos
The Planetary Science JournalThe successful impact of the Double Asteroid Redirection Test (DART) spacecraft on Dimorphos enabled the first-ever extensive observation of a postimpact ejecta tail from a binary asteroid system.
Xiaoyu Fu +28 more
doaj +1 more source
Optical remote sensing of asteroid surfaces from spacecraft
, 1978 Reflectance spectroscopy and multispectral mapping are the techniques likely to be most useful for determining asteroid surfaces.
Mccord, T. B.
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Early evolutionary history of the seed
Biological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Biogeography of intertidal invertebrates is influenced by latitude along the west coast of Australia
Ecography, Volume 2026, Issue 6, June 2026.Along the west coast of Australia, intertidal rock platforms support high invertebrate diversities that provide vital ecosystem services, yet patterns in diversity are not well understood. Here, we document and examine the invertebrate assemblages on intertidal rock platforms in Western Australia and delineate ecoregions according to assemblage ...
Matilda Murley +2 more
wiley +1 more source
The Planetary Science JournalThe OSIRIS-REx mission used stereophotoclinometry (SPC) to generate digital terrain models (DTMs) of its target asteroid, Bennu. Here we present a suite of preflight tests conducted to identify the observing geometry and number of images needed to create
Eric E. Palmer +11 more
doaj +1 more source
Depletion of sulfur on the surface of asteroids and the moon [PDF]
Meteoritics & Planetary Science, 2003 Abstract— Data from the X‐ray and γ‐ray spectrometers onboard the Near Earth Asteroid Rendezvous (NEAR) spacecraft were used to constrain the chemical and mineralogical composition of asteroid 433 Eros (McCoy et al. 2001). The bulk composition appears to be consistent with that of L to H chondrites (Nittler et al. 2001). However, there appeared to be a
openaire +1 more source
Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions
Journal of Field Robotics, Volume 43, Issue 4, Page 2553-2584, June 2026.ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos +6 more
wiley +1 more source
Widespread Impact‐Induced Crustal Permeability on the Early Earth
AGU Advances, Volume 7, Issue 3, June 2026.Abstract The early Earth (i.e., Archean and Hadean Eons, 2.5–4.0 and 4.0–4.5 Ga, respectively) experienced frequent cosmic bombardment. Impacts have been shown to stimulate crustal alteration, for instance via hydrothermal systems active for up to millions of years post‐impact.
A. M. Alexander +2 more
wiley +1 more source
, 2014 An adaptive guidance algorithm for close approach to and precision landing on uncooperative low-gravity objects (e.g. asteroids) is proposed. The trajectory, updated by means of a minimum fuel optimal control problem solving, is expressed in a polynomial
Armellin, Roberto +6 more
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