SPACE
SCIENCES
Includes
space sciences (general); astronomy; astrophysics;
lunar and planetary exploration; solar physics;
and space radiation.
88
Space Sciences (General)
Related
Topics: See 89 through 93.
89
Astronomy
+ 89-01
Solar Astronomy
Solar
activity; solar physics; solar telescopes and observatories.
+ 89-02
Stellar Astronomy and Cosmology
Stellar
and galactic astronomy including radio astronomy;
origin and evolution of the universe.
+ 89-03
Meteors and Meteorites
Meteor
properties and hazards; micrometeoroids and micrometeorites;
comets; interplanetary dust.
90
Astrophysics
+ 90-01
Gravitation
Gravitational
theory, effect, and fields; equations and potential;
antigravity; gravitational collapse; gravity gradient
control of satellites; geophysical gravitational
fields.
+ 90-02
Astrophysical Plasmas
Space
plasmas; solar, cosmic, stellar, and interstellar
plasmas; solar and stellar atmospheres.
91
Lunar and Planetary Science and Exploration
+ 91-01
The Moon
Lunar
atmosphere; topography; environment; lunar exploration;
lunar spacecraft and roving vehicles; surface properties.
+ 91-02
Planetary Sciences and Exploration
Planetary
composition, surfaces, atmospheres, and environment;
spacecraft and vehicles used in planetary exploration.
Related Topics: 15-03 Space Probes -- Lunar and
interplanetary deep space probes; unmanned, maneuverable
spacecraft.
90-02 Astrophysical Plasmas -- Space plasmas; solar,
cosmic, stellar, and interstellar plasmas; solar
and stellar atmospheres.
92
Solar Physics
Related
Topic: 89-01 Solar Astronomy -- Solar activity;
solar physics; solar telescopes and observatories.
93
Space Radiation
+ 93-01
Cosmic Radiation
Primary
and secondary cosmic radiation; galactic and stellar
radiation.
+ 93-02
Solar Radiation and Activity
Solar
radiation; observation and instrumentation; hazards
to space flight; protection from solar radiation;
solar storms; solar flares; solar winds; sunspots.
+ 93-03
Radiation Belts
Inner
and outer radiation belts; Van Allen Belt; artificial
radiation belts; geomagnetically trapped particles;
proton belts; trapped radiation.
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