Results 91 to 100 of about 22,935 (221)
Photoluminescence and Cathodoluminescence of the Solid Cometary Substance
Open Astronomy, 2019 We have proposed that solar ultraviolet and corpuscular radiations may excite photoluminescence and cathodoluminescence of the solid cometary substance including mineral halos of comets.
Simonia Irakli, Gucsik Arnold
doaj +1 more source
Veterinary Ophthalmology, Volume 28, Issue 2, Page 371-385, March 2025.Abstract Purpose To describe the clinical features surgical technique, early and long‐term outcome with or without surgery, and histopathological findings of melanocytic anterior uveal lesions in young dogs. Methods Medical records of dogs at a guide dog facility removed from training due to a pigmented iris lesion were reviewed from 2014 to 2021 ...
Valerie Liliane Dufour +6 more
wiley +1 more source
The Active Asteroids Citizen Science Program: Overview and First Results
The Astronomical JournalWe present the Citizen Science program Active Asteroids and describe discoveries stemming from our ongoing project. Our NASA Partner program is hosted on the Zooniverse online platform and launched on 2021 August 31, with the goal of engaging the ...
Colin Orion Chandler +22 more
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Wellbeing Frameworks and Future Generations
Journal of Social Philosophy, EarlyView.
Nicholas Drake
wiley +1 more source
Candidate Main-belt Asteroids for Surface Heterogeneity
The Astronomical JournalLarge terrestrial bodies in our solar system like the Earth, Mars, Mercury, and the Moon exhibit geologically complex surfaces with compositional heterogeneity.
Sunao Hasegawa +12 more
doaj +1 more source
Earth-approaching asteroids: Populations, origin, and compositional types [PDF]
, 1978 Origin, physical properties, and discovery history of smaller asteroids are reviewed. They appear to link the main belt objects, namely the comets and meteorites.
Shoemaker, E. M., Helin, E. F.
core
The Astrophysical Journal LettersM-type asteroids are historically thought to be exposed metallic cores of differentiated planets with a composition dominated by pure iron and nickel. However, recent spectral and radar observations reveal an insufficient number of M-type asteroids in ...
Tian Zhang +7 more
doaj +1 more source
Investigation and modelling of large scale cratering events : Lessons learnt from experimental analysis [PDF]
, 2011 Initiated as part of the 2010 Spin Your Thesis campaign, a new ESA Education programme, a group from the University of Glasgow Space Advanced Research Team successfully conducted a series of impact cratering experiments under a highly accelerated ...
Vasile, Massimiliano +2 more
core +2 more sources
Gravitational capture opportunites for asteroid retrieval missions [PDF]
, 2012 Asteroids and comets are of strategic importance for science in an effort to uncover the formation, evolution and composition of the Solar System. Near-Earth objects (NEOs) are of particular interest because of its accessibility from Earth, but also ...
Sanchez Cuartielles, Joan-Pau +3 more
core
Ground‐Based Validation of Hera's Spacecraft Monitoring Camera
Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.Abstract Hera is an ESA contribution to the international planetary defense effort. It is a deep‐space mission to the binary asteroid system Didymos and Dimorphos, designed to investigate the effects of NASA's Double Asteroid Redirection Test (DART), demonstrate autonomous navigation, and support close‐proximity investigation by two CubeSats.
D. T. Lakey, A. Schiavo, C. Guerbuez
wiley +1 more source