Spiral galaxy

as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away in the constellation Ursa Major. Due to its proximity to Earth large size and active galactic nucleus] or supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy's large size and relatively high brightness also make it a popular target for amateur astronomer. Messier 81 was first discovered by Johann Elert Bode in 1774.Consequently, the galaxy is sometimes referred…

The Big Bang is the most widely accepted theory about how our universe first began. This theory was first proposed by Belgian priest Georges Lemaître in the 1920’s. It suggests the universe was once condensed into a space equivalent to less than a grain of sand and expanded to billions of kilometers wide in about a second producing incredible amounts of heat. Everything you see is from that rapid expansion. That’s difficult to imagine, however, 3 major pieces of evidence support this; Hubble’s…

Universe 1. Galaxies can be as large as a few thousand to several hundreds of thousands of light years across. 2. Astronomers, at the time this was released, believe that there are over a hundred billion galaxies in the universe. 3. It is estimated that a light year is 5.88 trillion miles. 4. Galaxies come in three different main type shapes. There are spiral, elliptical, and irregular. 5. Spiral galaxies usually have a large flat disk… 6. Lenticular are similar to spiral galaxies except…

theory. This argument was proposed by Dr. Russell Humphreys, an expert in YEC. One of these phenomena includes the spiral shape of the known galaxies. Humphreys suggests that the spiral shape of the galaxies are indicative of the age of the universe because the speed of the rotation of the stars in a galaxy is so high that if the universe was billions of years old then the galaxies wouldn’t maintain that shape (Humphreys, 2005). Another…

Ever wanted to know more about nebulae or galaxies? A nebula is a cloud of interstellar dust, stars, and gas (usually hydrogen and helium). A nebula is less dense than a vacuum and mass less than a few kilograms although it is usually the size of the earth or bigger. A galaxy is gravitationally pulled system of stars, stellar remnants, interstellar gas, dust and dark matter. Galaxies range in size in lightyears. Galaxies, they are what holds our solar system and many, many more. We may not be…

Astronomers discovered a galaxy 9.8 billion light years away that creates an astounding 800 stars a year. To put this in perspective, the Milky Way produces two stars per year at most. “It is very exciting to have discovered such an interesting object,” said Gillian Wilson, a professor of physics and astronomy at the University of California, Riverside and a member of the research team. “Understanding its nature proved to be a real scientific challenge which required the combined efforts of an…

discovered a galaxy without the existence of dark matter(Shelton). Dark matter cannot actually be seen or detected itself, but, as Zwicky found, it causes immense levels of gravity. This newly discovered galaxy has only the normal amount of gravity you would expect to find due to its stars, planets, and general cosmic junk, unlike every other galaxy we’ve researched, which has a much greater gravitational effect than can be attributed to the mass of the known matter in any particular galaxy.…

Stars are complex and giant balls of matter that have many things to understand about. Stars are born of gas and dust and have a life cycle based on their original mass. All stars start out in their main sequence, but the first difference between the mass of stars is when they stop producing energy. The low-mass stars become giant, and the high-mass stars become super giant. For low-mass, the star then becomes a planetary nebula, then finally a white dwarf. High-mass stars become a supernova, a…

Science 07 March 2017 The Milky Way The galaxy is made of many diverse stars. From Protostars to Supergiant stars, it is also very unique. It consists of the only known planet that can sustain life (Earth ). As we know, the galaxy is full of stars. But did you know it is almost as old as the universe, or it was made of several galaxies that collided to create our galaxy? Here are some basic facts to improve your foundation of your understanding of our galaxy, the Milky Way. ( Below here is an…

present here on earth, but they also appear in outer space too. The Milky Way Galaxy, for example, contains a near perfect mirror image of itself. This is prevalent since it has two major arms, Perseus and Scutum-Centaurus. In addition to mirror symmetry, the Milky Way Galaxy also contains logarithmic spirals similar in design to nautilus shells and sunflowers. These logarithmic spirals are present from the center of the galaxy and expand outward.…