Subject
Astronomy
Observations, Astronomical.
15
Physics.
12
Astrophysics.
8
Gravitation.
5
Hadrons.
5
Heavy ions.
5
Nuclear physics.
5
Astrophysics
2
Electrical engineering.
2
Elementary particles (Physics).
2
Engineering.
2
Physics
2
Quantum field theory.
2
Space sciences.
2
Statistics.
2
Atmospheric sciences.
1
Atoms.
1
Automotive engineering.
1
Biotechnology.
1
Chemistry.
1
Condensed matter.
1
Cosmology.
1
Dynamical systems.
1
Earth sciences.
1
Environmental engineering.
1
Materials science.
1
Microwaves.
1
Optical engineering.
1
Particles (Nuclear physics)
1
Planetology.
1
Quantum theory
1
Radiology.
1
Relativity (Physics)
1
Remote sensing.
1
Statistical physics.
1