Subject
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Nuclear physics
1
Nuclear physics.
6
Observations, Astronomical.
33
Optics.
3
Optoelectronics.
3
Particle acceleration
1
Particle acceleration.
3
Particles (Nuclear physics)
1
Photonics.
1
Physical geography
1
Physical geography.
1
Physical measurements.
4
Physical optics
1
Physics
27
Physics.
43
Planetary science.
1
Planetology
4
Planetology.
5
Plasma (Ionized gases)
2
Plasma (Ionized gases).
2
Plasma astrophysics.
1
Plasma waves.
1
Plasmons (Physics).
3
Quantum field theory.
2
Quantum theory
1
Relativity (Physics)
1
Solar system.
1
Solid state physics.
1
Space sciences.
21
Spectroscopy.
1
Stars -- Evolution.
2
Stars -- Structure.
2
Statistical physics.
3
Statistics
1
Thermodynamics.
1
Weights and measures
1
X-ray astronomy.
1
acceleration
1
astronomy
2
astrophysics
4
atomic physics
1
comet
2
cosmology
1
electromagnetic transition
1
evolution
1
helium
1
hydrogen
1
magnetic field
1
meteorite
1
orbit
1
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