Results 161 to 170 of about 121,017 (322)
Compositional studies of primitive asteroids [PDF]
The composition of primitive asteroids and their relationship to satellites in the solar system will be studied by analyzing existing narrowband charge coupled device (CCD) reflectance spectra, acquiring additional spectra of asteroids and small ...
Vilas, F.
core +1 more source
Mass Spectrometry Reviews, Volume 44, Issue 5, Page 808-829, September/October 2025.ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase +5 more
wiley +1 more source
Narrow band photometry of selected asteroids [PDF]
The CCD photometry of selected asteroids was carried out to check for possible cometary activity in them. To distinguish the asteroids with possible cometary activity from those of the main belt, each object of interest was observed in two filters; one ...
Bhargavi, S. G., Rajamohan, R.
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Examining the Quantification Capability of Automated Mineralogy System: A Machine Learning Approach
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.Abstract Automated mineralogy (AM) systems are a novel platform for material characterization. By analyzing the X‐rays generated from sample–electron interactions, these systems can rapidly and automatically provide mineralogical and textural descriptions of a sample.
Ao Su +4 more
wiley +1 more source
Planetary Defence Activities Beyond NASA and ESA [PDF]
The collision of a significant asteroid or comet with Earth represents a singular natural disaster for a myriad of reasons, including: its extraterrestrial origin; the fact that it is perhaps the only natural disaster that is preventable in many cases ...
Barbee, Brent W.
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Geophysical Research Letters, Volume 52, Issue 15, 16 August 2025.Abstract The Moon encountered an extreme space weather event (NOAA G5 class) on 10 May 2024, caused by a series of coronal mass ejections (CMEs). Chandra's Atmospheric Composition Explorer‐2 (CHACE‐2), a neutral gas mass spectrometer on board Chandrayaan‐2 orbiter, made in situ observations of the lunar exosphere during this period.
M. B. Dhanya +5 more
wiley +1 more source