Definition Essay: What Are Galaxies?

a. The Milky Way galaxy is where our solar system is located in the universe.

The moons, asteroids and comets are smaller surrounding bodies. The Galaxy is an enormous cloud consisting of stars, gas, and dust. An accumulated gravity of its matter holds the Galaxy together. The Universe is made up of everything that exists. This includes galaxies, stars, and planets.

But they later discovered that there were more out there. When one day they aim there telescope at a patch of light and heard a sound coming, and realizing there was a galaxy far outside the Milky Way. The Galaxy that they found was the Andromeda Galaxy, this galaxy is 2.5 million light years away from Earth. The Astronomers where also surprise by the fact that the more distant a galaxy is the faster it’s moving, but it happens everywhere. For example, if you were in a different galaxy you will see the same effect that you are the center and everything else is moving away. Today the temperature of the cosmos today is three degrees above the coldest possible temperature and that is absolute

Astronomers in a new study have observed around 10,000 galaxies. Which are currently present in the Universe using a survey of the sky. Survey is created by the Herschel ATLAS and GAMA projects.

Since the dawn of civilization, humans have always wondered if they are alone in this extensive collection of galaxies called the Universe. Perhaps, they are not alone. Is there intelligent life among the cosmos? The Milky Way galaxy is just one of nearly a hundred billion galaxies. With such a vast number of galaxies that are billions of light years away, the idea of contacting another form of intelligent life seems impossible. After the invention of the radio in the early 20th century, researchers began to detect unexplained signals.

What is interesting about the galaxy is that it is believed to have formally been a spiral galaxy, similar to our galaxy the Milky Way.

Most he divided into two main groups, regular or irregular. In addition, regular galaxies were either spiral or elliptical. Spiral galaxies, like the Milky Way, have huge arms of new stars that trail around a rotating center of older stars. The elliptical galaxies also rotate around a center of older stars, but they are shaped like saucers, lacking the new-star arms of the spiral galaxies (galegroup.com). Hubble’s classifications for galaxies is still used today and has been updated with newer galaxies that have been

Did you know that there are about 200 to 400 billion stars in our galaxy! There are millions and millions and stars. Stars are made from burning gas, and from earth they look like tiny objects

Those stars in the night sky seem small and tiny, but up close they would be millions of times larger than the Earth. Stars are the most recognized astronomical objects and are the building blocks of the galaxies. These luminous spheres made of plasma are responsible for the creation of heavy elements like carbon, nitrogen, and oxygen. They were among the first objects in the early universe. Most of the elements found in the human body originated in stars, this means that we are literally made of stardust. When you are staring at stars from the night sky, you are actually looking back in time, the light you see could be from a million years ago. The study of the birth, life and death of stars are the central field of astronomy today.

The Milky Way is a barred spiral galaxy with a diameter between 100,000 and 180,000 lightyears.

     Stars are a marvelous wonder to many people, that is why some people spend most of their lives wondering what is “above the world so high” (Gardner 98). These people study and map the little twinkling stars in order to get a better meaning of them; they are astronomers. Great astronomers like Edwin Hubble, Immanuel Kant, and William Huggins, never stopped valuing the beauty of the stars. While they developed great astronomical principals. One astronomer who fits this mold most is, Edwin Powell Hubble. Wondering about what was

A cylinder bar that's pointed in the Earth's direction. Unlike inside the spiral arm where stars are still being born, all of the blue stars have been dead and left behind lower mass red stars. The bar rotates as a single unit where stars at the end orbit at the same time as the stars close in and in the very center of the galaxy is a Black Hole which is 4 million times the mass of the

This galaxy, among many others in its galaxy clusters, has been a designated area for astronomers. The Comet Galaxy has a core made up of millions of stars. In pictures form the Hubble telescope, the galaxy is highlighted by a fluorescent blue in the center of it.

The grand forces of the universe create magnificent galaxies according to “Your Guide to Galaxies” by ABC Science Online. Galaxies are giant clouds of stars, glowing with the power of many suns as they split the lonely darkness of the surrounding void. The forces keeping these awesome structures together uniquely affect the surrounding space as it creates many interesting events like “galactic cannibalism”, which is when smaller galaxies get sucked into bigger ones. Galaxies are classified into elliptical galaxies, spiral galaxies, lenticular galaxies, and irregular galaxies; each have their own sub-groups. We might as well enjoy the beauty and complexity the universe has to show us, spinning through a great cloud of stars and gas.

A galaxy, also called a nebula, consists of billions of stars, interstellar gas, dust, and dark matter which are all bound to form a massive cloud in which we live in. Although it cannot be very well explained, dark matter makes up at least 90% of a galaxy’s mass.