About The Alaxy
A galaxy is a vast assemblage of stars, gas, dust, and dark matter held together by gravity. The word is derived from the Greek word for "milky circle," and galaxies can contain anywhere from a few hundred million to trillions of stars. Our own galaxy, the Milky Way, is a typical example, with hundreds of billions of stars and enough gas and dust to create billions more. Galaxies can also be grouped together, with the Milky Way and Andromeda forming a binary system within a larger group of 50 closely bound galaxies known as the Local Group. Hubble's observations have revealed intricate details of galaxies, which can take on various shapes such as spiral, elliptical, or irregular. Overall, galaxies are considered immense cosmic islands within the universe, and are believed to be crucial in understanding the structure and evolution of the universe.
A galaxy is a vast collection of stars, gas, dust, and dark matter bound together by gravity. They can range in size from a few hundred million to trillions of stars. Our own galaxy, the Milky Way, contains hundreds of billions of stars, with enough material to create billions more. Galaxies can also be grouped together, like the Milky Way and Andromeda forming a binary system within a larger group of 50 closely bound galaxies called the Local Group. Galaxies can take on various shapes such as spiral, elliptical, or irregular. They are fundamental in understanding the structure and evolution of the universe.
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