Changes

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[[Image:Astronomybluevortex.jpg|right|frame|<center>[[Vortex]]</center>]]

[[Image:Astronomybluevortex.jpg|right|frame|<center>[http://en.wikipedia.org/wiki/Vortex Vortex]</center>]]

'''Astronomy'''  is the [[science|scientific study]] of [[Astronomical object|celestial objects]] (such as [[star]]s, [[planet]]s, [[comet]]s, and [[galaxy|galaxies]]) and [[Phenomenon|phenomena]] that originate outside the [[Earth's atmosphere]] (such as the [[Cosmic microwave background radiation|cosmic background radiation]]). 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'''  is the [[science|scientific study]] of [[Astronomical object|celestial objects]] (such as [[star]]s, [[planet]]s, [[comet]]s, and [[galaxy|galaxies]]) and [[Phenomenon|phenomena]] that originate outside the [[Earth's atmosphere]] (such as the [[Cosmic microwave background radiation|cosmic background radiation]]). 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]].