Category:Astrophysics: Difference between revisions

{{Commons cat|Astrophysics}}

'''Astrophysics''' is the branch of [[astronomy]] that deals with the [[physics]] of the universe, including the physical properties ([[luminosity]], [[density]], [[temperature]], [[chemistry|chemical]] composition) of [[astronomical object]]s such as [[star]]s, [[galaxy|galaxies]], and the [[interstellar medium]], as well as their interactions. The study of [[physical cosmology]] is theoretical astrophysics at its largest scale; conversely, since the [[energy|energies]] involved in cosmology, especially the [[Big Bang]], are the largest known, the observations of the cosmos also serve as the laboratory for physics at its smallest scales as well. See [[Astronomical_unit]].

{{Cat main|Astrophysics}}

[[Category:Astronomical sub-disciplines]]

[[Category:Subfields of physics]]

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