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- Galaxy - Wikipedia
A galaxy is a 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), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System
- Galaxies - NASA Science
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
- Galaxy | Definition, Formation, Types, Properties, Facts . . .
Galaxies differ from one another in shape, with variations resulting from the way in which the systems were formed and subsequently evolved Galaxies are extremely varied not only in structure but also in the amount of activity observed
- What Is a Galaxy? | NASA Space Place – NASA Science for Kids
There are many galaxies besides ours, though There are so many, we can’t even count them all yet! The Hubble Space Telescope looked at a small patch of space for 12 days and found 10,000 galaxies, of all sizes, shapes, and colors
- Galaxies—facts and information | National Geographic
Galaxies are sprawling systems of dust, gas, dark matter, and anywhere from a million to a trillion stars that are held together by gravity Nearly all large galaxies are thought to also
- Galaxies - Imagine the Universe!
Galaxies can be found by themselves, in small groups and in large clusters It is very rare to find stars in the space in between galaxies Galaxies sometimes collide with each other, with interesting results These collisions can trigger bursts of star-formation in addition to changing the shapes of the galaxies that collide
- Staggering first images from Vera C. Rubin . . . - Live Science
The first "stunning" images from the Vera C Rubin Observatory were released this morning, capturing roughly 10 million galaxies, many of which have never been studied before
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