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[[Image:NGC .jpg|right|thumb|350px|The majestic spiral galaxy ''NGC 4414'', imaged by the [[Hubble Space Telescope]] in 1995.]]

[[Image:NGC .jpg|right|thumb|350px|The majestic spiral galaxy ''NGC 4414'', imaged by the [[Hubble Space Telescope]] in 1995.]]

A '''galaxy''' is a massive ensemble of hundreds of millions of stars and planets, all interacting through the gravitational force, orbiting around a common center.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>  The universe contains hundreds of millions of galaxies.  Some scholars theorize that the center of every galaxy lies a super massive [[blackhole]].

A '''galaxy''' is a massive ensemble of hundreds of millions of [[star]]s and [[planet]]s, all interacting through the [[gravity|gravitational force]], [[orbit]]ing around a common center.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>  The [[universe]] contains hundreds of millions of galaxies.  Some scholars theorize that the center of every galaxy lies a super massive [[blackhole]].