Galaxy
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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.[1] The universe contains hundreds of millions of galaxies. Some scholars theorize that the center of every galaxy lies a super massive black hole.
See Also
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Physical Science. Apologia Educational Ministries, Inc. 1999, 2000