Astronomical Phenomena
Also known asPhenomena, Astronomical · Astronomical Concepts · Astronomical Concept · Concept, Astronomical · Concepts, Astronomical · Astronomic Concepts · Astronomic Concept · Concept, Astronomic · Concepts, Astronomic · Astronomic Phenomena · Phenomena, Astronomic · Astronomic Phenomenon
Definition
Aggregates of matter in outer space, such as stars, planets, and comets; their properties; and the processes they undergo.
MeSH classification
- G01.060
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Absorption
The physical or physiological processes by which substances, tissue, cells, etc. take up or take in other substances or energy.
Absorption, Physicochemical
The physical process of passing into, or being taken up or taken in by a substance.
Adsorption
The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces a…
Alpha Particles
Positively charged particles composed of two protons and two NEUTRONS, i.e. equivalent to HELIUM nuclei, which are emitted during disintegra…
Anisotropy
A physical property showing different values in relation to the direction in or along which the measurement is made. The physical property m…
Astronomical Objects
Aggregates of matter in outer space.
Avalanches
Mass of snow and/or ice falling down a mountain or incline.
Background Radiation
Radiation from sources other than the source of interest. It is due to cosmic rays and natural radioactivity in the environment.
Source: NIH MeSH 2026 (D055580) — National Library of Medicine, public domain. View official MeSH record ↗