Differentiate between the following. 1.Universe and galaxy
Answers
Answer: The term "universe" refers to everything that exists, including galaxies and the space between them. A galaxy is a massive cluster of stars (millions or billions) held together by gravity. The Milky Way is the name of the galaxy in which we live.
Answer:
Galaxy, which can be called as a star cluster or a star system, is a system that is composed of stars, gas, asteroids, dust, and dark matter. A central force known as a black hole holds all these together. The universe consists of Earth and other celestial bodies in outer space. The solar system is part of the universe.
A galaxy is part of the universe. The universe has a wider concept than a galaxy as everything is included in it.
A galaxy ranges from giant, with trillions of stars, and dwarf with millions of stars. These stars are known to move around the mass in the center. There are many galaxies in outer space. Several theories state that there are many galaxies in outer space that we are not aware of as they are invisible.
When talking about the universe, it can be composed of anything around us. The Earth, energy, sky, galaxies, and everything that is seen around us comes under the term “universe.”
“Galaxy” is a term that has been taken from the Greek word “galaxias” that means “milk.” “Universe” is a word that has been derived from an Old French word “univers” which has been derived from the Latin word “universum” which means “turned into one.”
A galaxy comes in different shapes and sizes. In general, a galaxy has been divided into elliptical, spiral, barred spiral, and irregular.
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