Galaxy nucleus

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The nucleus of a galaxy is a large feature, most easily observed in spiral galaxies. The nucleus generally contains older, higher-mass stars, and, in general, represents the galactic center of gravity.

[edit] Black Holes

A longstanding theory was that the nucleus of many, most, or possibly all galaxies contained some form of supermassive black hole. Following recent observations of gas, dust, and stars orbiting within the nucleus, this theory has been upheld. It is also established that our own galaxy (the Milky Way) contains such a black hole.


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