GALAXY NOTE 2 News, Videos, Twitter, Pictures, Q&A

A galaxy is a physical system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity. [1][2] The word is derived from the Greek galaxias (γαλαξίας), meaning 'milky', a reference to the Milky Way galaxy that contains the Solar System.

Galaxies - NASA Science
science.nasa.gov

Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity. The largest contain trillions of stars and can be more than a million light-years across. The smallest can contain a few thousand stars and span just a few hundred light-years.

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Galaxy
usegalaxy.org

Galaxy is a community-driven web-based analysis platform for life science research.

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Galaxy | Definition, Formation, Types, Properties, & Facts | Britannica
www.britannica.com

What is a galaxy? A galaxy is any of the systems of stars and interstellar matter that make up the universe. Many such assemblages are so enormous that they contain hundreds of billions of stars. Galaxies usually exist in clusters, some of which measure hundreds of millions of light-years across.

What Is a Galaxy? | NASA Space Place – NASA Science for Kids
spaceplace.nasa.gov

What Is a Galaxy? The Short Answer: A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. 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.

Milky Way - Wikipedia
en.wikipedia.org

Because the galaxy is structured as a plane, a high density of stars is seen by looking into the plane, toward the Galactic Center. However, the other stars outside the band are also in the Milky Way. The galactic plane is 60 degrees tilted from the ecliptic of the Earth's orbit of the Sun.

What’s a galaxy? All you need to know about galaxies - EarthSky
earthsky.org

A galaxy can contain hundreds of billions of stars and be many thousands of light-years across. Our own galaxy, the Milky Way, is around 100,000 light-years in diameter.