Astrophysics
From Wikipedia, the free encyclopedia.

Astrophysics is the part of astronomy that deals principally with the physics of the universe, including luminosity, density, temperature, and the chemical composition of stars, galaxies, and the interstellar medium.

See:

• Theoretical astrophysics
• List of astrophysicists

The original article can be found at: http://en.wikipedia.org/wiki/Astrophysics.
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