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Galaxy - Wikipedia

en.wikipedia.org/wiki/Galaxy

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and ..... At the other extreme, an Sc galaxy has open, well-defined arms and a small core region. A gal...

Galaxy | Define Galaxy at Dictionary.com

www.dictionary.com/browse/galaxy

Galaxy definition, a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. See more.

What is a Galaxy? | NASA Blueshift

asd.gsfc.nasa.gov/blueshift/index.php/2012/09/17/kojis-blog-what-is-a-galaxy/

Sep 17, 2012 ...Galaxy,” Defined — when I came across a paper with this title while browsing a recent issue of Astronomical Journal, I was intrigued.

galaxy - Dictionary Definition : Vocabulary.com

www.vocabulary.com/dictionary/galaxy

A galaxy is a collection of stars and planets that are held together by gravity. In a galaxy, the celestial bodies rotate around a central object.

What Is a Galaxy? | Science | AAAS

www.sciencemag.org/news/2011/01/what-galaxy

Jan 27, 2011 ... A pair of astronomers call for a debate on a tricky definition. ... You might think a galaxy is simply a large group of stars, but just how many stars ...

galaxy - definition of galaxy in English | Oxford Dictionaries

en.oxforddictionaries.com/definition/galaxy

a system of millions or billions of stars, together with ... Meaning, pronunciation, example sentences, and more from Oxford Dictionaries.

What defines a galaxy? - Scientific American

www.scientificamerican.com/article/what-defines-a-galaxy/

Today we are nearly overwhelmed with data on the immense diversity of galaxies , to the extent that it actually becomes difficult to write down a definition that ...

What Defines a Galaxy? | astrobites

astrobites.org/2012/03/16/what-defines-a-galaxy/

Mar 16, 2012 ... A more common recent definition appeals to the presence of dark matter: a galaxy contains it, while a star cluster such as a GC does not.

What is a Galaxy? - Universe Today

www.universetoday.com/30534/what-is-a-galaxy/

Apr 26, 2016 ... ... heard that our Sun is located in the Milky Way galaxy. But what is a galaxy anyway? The simple answer is that a galaxy is a collection of s.

Galaxy dictionary definition | galaxy defined - YourDictionary

www.yourdictionary.com/galaxy

The definition of a galaxy is a large area, particularly of dust, stars and gas that makes up a universe. An example of a galaxy is the Milky Way. YourDictionary ...

Answers
gal·ax·y
[gal-uhk-see]
NOUN [PLURAL GAL·AX·IES.]
1.
any large and brilliant or impressive assemblage of persons or things: a galaxy of opera stars.
Source: Dictionary.com
galaxy | Define galaxy at Dictionary.com
dictionary.reference.com/browse/galaxy
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