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A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy is derived from the Greek galaxias ...

What is a galaxy? :: NASA Space Place


We live on a planet called Earth that is part of our solar system. But where is our solar system? It's a small part of the Milky Way Galaxy. A galaxy is a huge ...

What Is A Galaxy - Hubblesite - Reference Desk - Faqs


The name of our galaxy is the Milky Way. Our Sun and all of the stars that you see at night belong to the Milky Way. When you go outside on a dark night and ...

What is a galaxy? - The Astronomy Cafe


A galaxy is, by definition, any large collection of stars that can be recognized as a distinct physical entity. In terms of the number of stars, a small 'dwarf irregular' ...

What is a Galaxy? - Universe Today


May 6, 2009 ... ... 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.

What are galaxies? | Cool Cosmos


Galaxies are huge collections of stars, dust and gas. They usually contain several million to over a trillion stars and can range in size from a few thousand to ...

Galaxies - Astronomy For Kids - KidsAstronomy.com


There are billions of Galaxies in the Universe. Some are very small with only a few million stars. While others could have as many as 400 billion stars, or even ...

Galaxies, Galaxy Information, Galaxy Facts, News, Photos ...


A composite image of the Messier 81 (M81) galaxy shows what astronomers call a "grand design" spiral galaxy, where each of its arms curls all the way down ...

Galaxy | Define Galaxy at Dictionary.com


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

www.ask.com/youtube?q=What Is a Galaxy?&v=-gbOt1knW3s
Feb 28, 2013 ... Hi, I'm Emerald Robinson. In this "What Is" video we'll take a look at the largest known visible objects in our universe, galaxies. Galaxies are ...
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
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