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===Astronomy===

===Astronomy===

This discipline is the science of [[Astronomical object|celestial objects]] and [[phenomena]] that originate outside the [[Earth's atmosphere]]. It is concerned with the evolution, [[physics]], [[chemistry]], [[meteorology]], and [[motion (physics)|motion]] of celestial objects, as well as the [[physical cosmology|formation and development of the universe]]. Astronomy includes the examination, study and modeling of [[star]]s, [[planet]]s, [[comet]]s, [[galaxy|galaxies]] and the [[cosmos]]. Most of the information used by astronomers is gathered by remote observation, although some laboratory reproduction of celestial phenomenon has been performed (such as the molecular chemistry of the [[interstellar medium]].)

This discipline is the science of [[Astronomical object|celestial objects]] and [[phenomena]] that originate outside the [[Earth's atmosphere]]. It is concerned with the evolution, [[physics]], [[chemistry]], [[meteorology]], and [[motion (physics)|motion]] of celestial objects, as well as the [[physical cosmology|formation and development of the universe]]. Astronomy includes the examination, study and modeling of [[star]]s, [[planet]]s, [[comet]]s, [[galaxy|galaxies]] and the [[cosmos]]. Most of the information used by astronomers is gathered by remote observation, although some laboratory reproduction of celestial phenomenon has been performed (such as the molecular chemistry of the [[interstellar medium]].)