Cosmic Life and Death of a Star Essay examples

Cosmic Life and Death of a Star Essay examples

Length: 1612 words (4.6 double-spaced pages)

Rating: Powerful Essays

Open Document

Essay Preview


Nebula as Star Nurseries

Stars are born in the interstellar clouds of gas and dust called nebulae that are primarily found in the spiral arms of galaxies. These clouds are composed mainly of hydrogen gas but also contain carbon, oxygen and various other elements, but we will see that the carbon and oxygen play a crucial role in star formation so they get special mention. A nebula by itself is not enough to form a star however, and it requires the assistance of some outside force. A close passing star or a shock wave from a supernova or some other event can have just the needed effect. It is the same idea as having a number of marbles on a trampoline and then rolling a larger ball through the middle of them or around the edges. The marbles will conglomerate around the path of the ball, and as more marbles clump together, still more will be attracted. This is essentially what happens during the formation of a star (Stellar Birth, 2004).

If the nebula is dense enough, certain regions of it will begin to gravitationally collapse after being disturbed. As it collapses the particles begin to move more rapidly, which on a molecular level is actually heat, and photons are emitted that drive off the remaining dust and gas. Once the cloud has collapsed enough to cause the core temperature to reach ten-million degrees Celsius, nuclear fusion starts in its core and this ball of gas and dust is now a star. It begins its life as a main sequence star and little does it know its entire life has already been predetermined.

Although this may sound like a simple enough process there are actually several variables that must be just right for birth to happen. For one, the mass of the collapsing particles is crucial and ther...

... middle of paper ...

...e times the mass of the sun. In this case gravity is overwhelmingly strong and is able to crush the neutron star towards zero mass. The result is a black hole with a gravitational field strong enough to not even let light escape (Brusca, 2004).


Brusca, Stone. Cosmos, Physics 304. Arcata, CA: Dr. Stone Brusca, 2004.

Miller, Coleman M. Introduction to neutron stars. University of Maryland. 22 Nov. 2004

Star death: post- main sequence evolution of stars. 22 Nov. 2004

Stellar Birth. 11 Jan. 2004. 22 Nov. 2004

Tyler, Pat. Supernova. NASA’s Heasarc: Education and Public Information. 26 Jan. 2003. 22 Nov. 2004

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

What Is The Mechanism Of Suicide Of Cosmic Terms? Essay

- 84. What Is ‘Mechanism’ of SUICIDE in Cosmic Terms. • The official medicine, front running a lucrative branch of ‘convenient’ man made science, which together with ‘hand in glove’ pharmaceutical industry devastates Terrestrial Human Organisms making havoc in the Microworld for their own money, loudly utilizes all propaganda outlets announcing every now and then anti-suicidal ‘panacea’. The latest in the line of attacks on common sense is aggressive advertising of a ‘peel’ or intravenously injected chemical which according to financially well-lubricated med-journals is, “…clinically tested for TREATMENT-RESISTANT bipolar diseases, major depressive disorders, and people in suicidal crisis in...   [tags: Suicide, Mental disorder, Bipolar disorder]

Powerful Essays
1445 words (4.1 pages)

The Birth of a Star Essay

- A star is a self-radiant divine body consisting of a mass of gas held together by its own gravity. The birth of a star begins inside a molecular cloud. Stars form inside these somewhat dense concentrations of interstellar gas and dust. The process of star formation has long been a mystery because of viewing limitations. Large amounts of small solid particles blocked our view of the stars which are beyond the molecular cloud. Infrared technology now provides some insight on how a star is formed. Cloud cores contain sources of fierce infrared radiation, evidence of energy from collapsing protostars (potential energy converted to kinetic energy)....   [tags: formation, clouds, molecular]

Powerful Essays
574 words (1.6 pages)

Star Light, Star Bright...What Are Stars? Essay

- ... Stars are born using the ingredients of hydrogen and gravity. Nebulae, clouds of stardust and gas, are “star nurseries where millions of stars are being born” (Extreme Stars). These “enormous clouds of cosmic dust and hydrogen gas” (Science Online) are attracted to each other by the forces of gravity, collapsing inward, forming a dense central clump. As this process continues, heat is released and trapped inside the core of the clump, causing a rise in temperature. This pre-star continues to collapse inward, increasing the density of its core resulting in a drastic rise in temperature eventually resulting in thermonuclear fusion....   [tags: elements, hydrogen, gravity]

Powerful Essays
623 words (1.8 pages)

Essay E.M.W. Tillyard's Elizabethan World Picture: Analysis

- The Elizabethan World Picture begins focus on the Order of the Universe. Tillyard explains that God has created an order for everything. Cosmic order is a key characteristic in poetry and plays written in the Elizabethan time period. Tillyard claims that our order is affected by personal connections with each rank. Tillyard uses several examples of order in our lives one of those being, “the sun, and the king, primogeniture hang together”. Primogeniture is the right for the firstborn to inherit the family estates....   [tags: Cosmic Order, English Plays]

Powerful Essays
1198 words (3.4 pages)

The Cosmic Microwave Background Radiation Essay

- Even though the equal balance of matter and antimatter created in the beginning of the universe as proposed by the Big Bang theory might have annihilated each other before any stars could form, the inflation model of the Big Bang accounts for the unequal level of matter-antimatter existing today and how stars could form before matter-antimatter reactions destroyed the universe. The existence of the Cosmic Microwave Background Radiation is in line with what is predicted by the Big Bang Theory, specifically that the Cosmic Microwave Background Radiation exists....   [tags: Cosmic microwave background radiation, Universe]

Powerful Essays
1046 words (3 pages)

Essay about Life of a Star

- The most common known star is our very own sun, that is common knowledge, but where did the sun come from. It couldn’t have just appeared from thin air, and it can’t remain forever, for every birth there is a death. Astronomers believe that molecular clouds, or large clouds of gas, are the primary source for the birth of stars. Gravity compresses this cloud into a massive sphere of gas and dust, and once the temperature reaches 15 million degrees it sparks the nuclear fusion, it begins to glow and burn, and voila....   [tags: Astronomy]

Powerful Essays
694 words (2 pages)

Astro - Star's Life Essay

- Introduction Stars make up the majority of what we see in the night sky. For all practical purposes the universe contains almost an infinite number of stars (billions upon billions….). Stars have been studied for as long as humans looked up at them. They are classified, categorized, and we have seen images of both the beginning and ends of stars. This paper will discuss the nature of the birth to the end-of-life cycles of stars. Electromagnetic Waves The universe is an expanding amalgam of gases, particles, dust, heat, cold and everything that is around us....   [tags: Science Space Star Formation Research]

Free Essays
1165 words (3.3 pages)

Essay The Star by Arthur C. Clark

- In "The Star" by Arthur C. Clark, a Jesuit astrophysicist is forced to question his faith. The findings are troubling, an entire civilization is destroyed by a supernova; the implosion of their sun. The calculations that he makes proves that explosion could have been seen from earth at the same time the Star of Bethlehem announced the birth of Jesus Christ. His crew looks at the situation with a more logical justification. They believe that the events in the universe happen with no plan or purpose....   [tags: The Star ]

Free Essays
302 words (0.9 pages)

Essay The Hour of the Star

- The Hour of the Star As Clarice Lispector was writing what would become her last literary creation, The Hour of the Star, little did she know that while her body was plagued with the devastations of cancer, her mental struggle for peace and grace in death would inspire her most renowned novel. Perhaps it is because of those circumstances, she created a novel with intuitive reflections on both life and death, as seen through the life of the main character, Macabea. The story is narrated by Rodrigo S.M., and although Rodrigo attempts to maintain a neutral stance, he is often conflicted by his own perceptions and feelings....   [tags: Clarice Lispector The Hour of the Star Essays]

Powerful Essays
1818 words (5.2 pages)

The Life of a Star Essay

- The Life of a Star One night while little Jimmy was out camping with his father, he asked his father how a star is made. And his father said there are high-mass stars, intermediate-mass stars, and low-mass stars. The life cycles of stars follow three general patterns each associated with a range of initial mass. Much like human beings stars have a life cycle, they go threw birth, evolution, and death. And little Jimmy said how is that possible. First the star must be born. Many astronomers believe that a star is formed when large compression waves traveling through gas clouds create dense knots of gas is the cloud....   [tags: essays research papers]

Powerful Essays
658 words (1.9 pages)