Andromeda Galaxy

on by a force,” and the same remains true even at the massive scales of the Universe. These clouds of gas and dust can be billions of miles across (Chinn, 2010b), and as such, require significant events to occur to displace them. The movements of galaxies and shock waves from supernova explosions are examples of events that can cause the gas and dust clouds to be…

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.…

like to gain knowledge regarding galaxies, black holes, and exoplanets. A galaxy is a system that contains millions of stars, gas and dust held together by gravitational attraction. A black hole is a place in space where the gravitational force is immense, making the escape of matter and radiation impossible. An exoplanet is a planet that orbits a star, other than the sun, beyond our solar system. By choosing these targets, I wish to learn about how the first galaxies were formed, why black…

Dark matter makes up roughly 23% of the universe, and is thought to be the cause of its expansion. Dark matter was first proposed by Swiss astronomer, Fritz Zwicky when he noted that galaxies are flying away to fast. He noticed that galaxies are flying away to fast that they should fly apart, dissolve under Newtonian Laws of Motion. He thought the coma cluster may be saved if it were 100x more matter than you can see. Theres two possibilities left. Newton was wrong or something was missing.…

Have you ever wondered how stars are formed, how massive they are, or even how they perish. 1. Well most massive stars are the shortest lived.2. A star's life expectancy depends on its size. 3.Most star’s take millions of years to perish. We should be learning about stars because stars are something that most humans don't know about, most don't know how they form, how they perish, or even how massive they are. Most massive stars are the shortest lived. A star's life expectancy depends on its…

exist” argument was not introduced by Fermi, but by astrophysicist Michael Hart. Hart, in a 1975 paper published by the Royal Astronomical Society, argued that if there were intelligent beings in the galaxy, they would have eventually achieved space travel, and would have explored and colonized the galaxy as we have explored and colonized the Earth. The absence of intelligent extraterrestrial life, he concluded, is proof that it does not exist. Hart rejected all alternative explanations,…

A Stars lifecycle can span from millions to trillions of years depending on the size of the star. Starting from a cloud of gas and dust then transforming into something that we on earth see every day as our own Sun then finally collapsing upon itself and eventually dying. Stars have been a major part of the development of life on Earth and will continue to dictate how we live our lives. Without these enormous balls of gas and energy life as we know it would cease to exist. This is regrettably…

wavelength of radiation due to the relative motion between the source and the observer along the line of sight.” (Slater) b. The Doppler Effect is important to astronomers because it gathers “basic information about the motions of planets, stars, and galaxies.” (Slater) 10. If you see a blue star, what does its color tell you about how the star is moving through space? Explain your answer. (Pages 49 – 50) a. By seeing a blue star, you can predict that a star is moving towards the Earth. As…

Even then, the stars we see in the darkest of night skies still are only a small fraction of the stars in our galaxy, and our…

V. The Cat’s Eye Nebula One of the most famous nebulae is the Cat’s Eye Nebula (NGC-6543); it was discovered by William Herschel in 1786. NGC-6543 is located in the northern constellation of Draco; it appears as a blooming center with surrounding and expanding rings. The NGC-6543 has a historical importance because it was the first nebula to be studied spectroscopically by the astronomer William Huggins in 1864; this study revealed the distinctions between PNe and the other gaseous nebulae.…